Monday, April 25, 2011

Business Cards v2.0


Back in December I began re-designing my business cards. I have to say though, I was never fully satisfied with the result. Consequently, the design sat unused and unordered for the past 5 months. I have spent a few days throughout those months pulling up the design and tweaking it but just couldn't seem to settle on what I wanted. Well, a few days ago I had my breakthrough. To most it probably doesn't seem like much, but you know what they say, "We are our own worst critics."

FRONT

BACK
A quick detail: I had the front logo and main text foiled to add a bit of flare while the rest of the card will remain matte black. The back is matte finish as well. I will post images when they arrive, provided I am satisfied.

Throughout the spectrum of humanity, from those who are enamored with design and aesthetics to those who would claim ignorance, we as humans inherently possess an appreciation for the way things look. Undoubtedly this can be seen in some of our most basic behaviors such as our search for a mate. What is it about this girl that I find so irresistible? Countless studies have been performed by the scientific community to quantify beauty (symmetry is one concept that tends to come up a lot). The whole concept of how individuals discern "beauty" is something I find particularly fascinating. The reason I bring all that up is simply that in designing my card, I found myself obsessing over some of the smallest little details. It was almost like that scene from American Psycho... Thankfully, in the end, it was quite a bit less violent!

I ordered from VistaPrint.com and the cards should currently be en route!

Sunday, April 3, 2011

Tokina 90mm f/2.5 - Some Sample Images

Sphalerite - Tokina 90mm f/2.5 (Stacked with CombineZM)


The "Bokina" Hype - Is It All It's Cracked Up To Be? (Quick Answer: YES)

Over the past few months I have been watching the prices for the famed Tokina 90mm f/2.5 (nicknamed the "Bokina" for it's ethereal, soft rendering of out of focus regions of your images) climb through the roof as if these lenses were becoming extinct. Just last year I picked this lens up for $180 from KEH in Nikon N/AI mount and the macro extender, case, and hood for an additional $50 on eBay. I read a forum post where someone had found their Minolta MD mount version complete and like new for $75 from KEH. Within the last 60 days (of writing this) two complete N/AI mount Tokina 90mm lenses sold for $600 on eBay. Given that this lens tends to come up anytime there is talk of great macro lenses, I suppose I shouldn't be surprised. It truly is a phenomenal lens. Whether or not you would pony up $600 is all about how bad you want it...

The past few months for me has been quite a blur. In my freelancing and internship, I have found the Tokina 90mm to be a particularly important asset to my kit. It is an excellent lens for food photography, allowing portions of the dishes to appear crisp and clear while the backgrounds fades away seamlessly into overlapping veils of color. More on that another time. I do want to show some samples from my other project though.

In my internship, I was given the opportunity to shoot a subject that is right up my alley: macro images of minerals. Our hydrologist at work was giving a presentation on mineralogy and asked if I could make her some better images for her powerpoint. Since she (and another co-worker) have an extensive personal collection of minerals they were able to provide me with very nice samples of the various minerals she was looking for. Hardly a job I could complain about!


The Macro Rig



Why the sketch instead of simply photographing the setup? Originally I left my equipment at work when I began drafting this post and being that I wanted to illustrate the setup, I did just that, illustrate! I have since brought the setup home but figured I may as well still use the drawing! Anyway, these minerals I was photographing are considered "micro-mount" which means they are very small samples, probably around 25mm across in total. The average field of view in the images below is only a few millimeters, an even smaller portion of the already small mineral sample thus the reproduction ratio is considerable. Despite this extreme magnification, the Tokina 90mm yields sharp, detailed images!

The Tokina's ability to render subjects crisply amidst a beautifully shallow depth of field (wide open) is perhaps the lens' greatest capability, though this is slightly opposite of what I needed in this situation. The biggest issue with photographing a subject that is so small is a shallow depth of field. I really needed to be able to see more of each mineral in focus, but I did love a soft background that falls off. This is where image stacking comes in. I mentioned this method before on the blog using a program called Helicon Focus. While that is a great program, it costs, and I don't believe it is available for PC. At work we use PC's and thus I found a great (and better yet, FREE) alternative: CombineZM. Image stacking is a process of making multiple images, each focused consecutively "along" or "into" the subject, which is then imported into the stacking software, which essentially does just as you would think, combines all the images, using algorithms to determine what is in focus in each image, to the eventual output: an image with a much greater depth of field than any single image could have depicted. Such a capability certainly begs many curious ideas of what to photograph. This process works amazingly well with static subjects such as minerals but can become difficult with live subjects that move (though it is quite possible!). Below are the minerals. Typically they are comprised of between 10-20 stacked images. I made most of them around f/11-16 for optimal sharpness and since my DoF was already so shallow, it wasn't like I had to worry about blurring the background. Enjoy!


Wavelite - Tokina 90mm f/2.5 (Stacked with CombineZM)

Strengite - Tokina 90mm f/2.5 (Stacked with CombineZM)

Dufrenite - Tokina 90mm f/2.5 (Stacked with CombineZM)

Dufrenite - Tokina 90mm f/2.5 (Stacked with CombineZM)


Macro Season is Upon Us!


And so macro season approaches. Today, a strong, but warm wind (90º warm!) blew through St. Louis piquing my macro-senses (and my tennis senses as well, but that's a different story). While the wind factor is hardly the ideal condition for outdoor macro work, the warmth and newly active wildlife is. The enormous bumble bees which populate our backyard gardens emerged and struggled to make the best of our windy, but beautiful day. I recently picked up a new geared tripod head which has become my go-to support for macro work. It has revolutionized my ability to efficiently make macro images. I will have more on this soon. Once again, apologies for my recent absence!

Saturday, January 15, 2011

Blog News - Welcome to 2011!

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A bit late but welcome to the New Year, 2011! This past holiday season has been especially eventful and just downright crazy for me. I apologize for the lack of updates etc..

Much has happened since my last post and I still haven't even ordered my business cards! That being said, I will just go ahead and delve right in as I have a lot to say regarding a (now not-so-recent) purchase.

Nikon 50-300mm f/4.5 *ED AIs


Some time back I was trolling eBay as usual and I came across a newly listed Nikon manual focus lens, the 50-300mm f/4.5 *ED AIs. I was the second person to view it and even though I had never looked into this lens or seen it, sometimes you just know. The price was surprisingly low for a lens of that range especially one that bears the desired "*ED" designation (Extra-low Dispersion glass). I quickly googled the lens and checked KEH only to find the same lens selling for nearly $1000. At $250 BIN (in mint condition with leather case, caps, and 95mm Nikon filter) I feverishly navigated back to the eBay tab and within seconds I was gazing upon a "Congratulations! You just bought this item" page.

To be frank, this one lens entirely changed my photographic kit leading me sell off a number of lenses I previously found to be perfectly adequate.


Finding the Right Lenses for You

I have often heard/read of what pro photographers say of great lenses, "Once you get this lens, anything else you have in this focal length will simply be redundant." I contrastingly have always felt each and every lens has a unique perspective and therefore shares a place in my bag. I am not alone, for many of my fellow photographers over at the Manual Focus Lens Forum can attest to the latter as they have at time, 20 or more lenses of the same exact focal length.

Since my disappointing purchase of the $1300+ Nikon 28-70mm f/2.8 AF-S some years back it occurred to me that the most expensive glass is not always the best. This blog has been an educational personal exploration into what other optical manufacturers have to offer optically for (hopefully) less money than the camera-brand manufacturers. I have to say, so far, I am very impressed to see the quality that can be had in some of these alternative lenses. While many turn out to be clearly less than the best, others far exceed (see the Tokina 90mm f/2.5 - LOVE that lens!).

Photography is both an art form and a vocation (and sometimes both, but not always). From the artistic standpoint, you are the judge and jury of your work. Photography should be first and foremost, for you. The right lens revolves wholly around whether or not you get what you are shooting for. Photography as a career operates much differently and in many cases will demand more of your optics since you are shooting for clients with their own requirements. In my case, the output for both applications shares a common desired output. I want sharp, bold, clear, colorful, sharp (did I say sharp?), aberration free imagery (or as close as I can get).

I once shot with cheap kit lenses that proved adequate, but not enough. I then read some reviews, bit the bullet and sprung for the best Nikon had to offer on two lenses; a couple of premium AF-S, gold-lined, super-duty optics. To my dismay one of the lenses proved to be quite soft and not nearly as high performing as Nikon touted. I rebounded by discovering the world of third-party lenses. Thus has been the journey noted in this blog.

Buying Gear for the Frugal Photographer



Using this Nikon 50-300mm f/4.5 optic has been amazing. The lens just makes great, clear, sharp images with few aberrations. Consequently, I think it is important to discuss another aspect of searching for gear for the "frugal photographer": Patience.

Having been immersed in the third-party..."party" for some time, I have come to realize nearly all of these lenses tend to have pretty clear shortcomings. Not that all lenses don't. These just tend to be a little more prominent. Best example would be CA. Nearly all of the Tamron SP and Tokina AT-X lenses, even the best, I have worked with demonstrate more severe CA than the few superior Nikkor lenses I have tested. The third-party lenses, as you know, also cost significantly less. So I have learned to deal. Avoid lighting situations which will produce severe CA or don't shoot completely wide open all the time. While this may prove inconvenient and certainly not ideal for a paid shoot in which you have little control over what the client's needs are, it is just about the only solution for the starting photographer with limited funding.

So what are you to do if you have little cash and can't seem to find a third-party lens that lives up to your standards?


While the deal I got on this 50-300mm could be considered a fluke, the truth is, it simply isn't (actually the very next week a similar condition lens went up for BIN for $330). With so much gear in the marketplace, especially in these economic times, people are constantly listing things for arbitrary prices, simply in hopes of meeting their financial needs. Which can often be far less money than the lens is worth resulting in a great opportunity for a beginning photographer. Finding these deals is only a matter of time.

Patience and persistence can bring you some of the best gear out there, for less than the price of the worst.


Why Am I Telling You All This?


As I said, I have been shootings with a combination of a couple really nice "bread and butter" Nikkors and then many third party optics for some time now. They can produce some wondrous results but it doesn't mean I don't still lust for some of these incredible newly designed lenses with built-in VR, etc. Well in this past couple months, patience afforded me the opportunity at two such lenses resulting in a new perspective and drastic reduction in my kit (simply because I currently don't have enough money to have a lot of unused lenses sitting around). As mentioned above, I found the Nikon 50-300mm f/4.5 *ED AIs for $250 BIN on eBay. I also picked up a like-new Nikon 70-200mm f/2.8 AF-S VR II for half the OEM price through a BIN that popped up on the bay.

These two lenses, though generations apart, represent the culmination of Nikon's design and optical knowledge in their respective periods, and I have nothing to say to refute it. They are simply unbelievable. I have been so impressed by their performances, I have sold off many of my other lenses to fund these (and somehow I actually made money?) and also because I just wasn't really using them anymore. I will be doing more thorough reviews on each of these in the future but for now I will leave you with some images I have made from them:

Nikon 50-300mm f/4.5 *ED AIs



Nikon 70-200mm f/2.8 AF-S VR II

This composite (used a second, wider shot for an extended sky) of the Alton, IL Lock and Dam was made at 1/15 of a second in the breaking dawn light out the window of a small corolla crossing the bumpy Clark Bridge. I am simply amazing at how well the VR works!


Neelam's first Christmas (Crazy looking? She only broke 2 ornaments.)

Wrap Up

Patience! Patience is a great approach to finding the best gear. Read, research, know what you want to try, and then just keep your eyes open. You never know!

It looks to be a great new year. Despite a troubled economy, I am optimistic because regardless of what the job market brings, photography is still ultimately for me. I cannot help but do it. Just last night I was reminded by someone how intrinsically beautiful passion for something, anything can be. God has blessed me with an ability and a desire and for that I am always thankful.

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Sunday, December 5, 2010

New Business Cards!



Wow, so it has been a good while since I last posted here. Hit a bit of a rough patch this past month so things have been hectic. I have been pushing to get this review of the Nikon 50-300mm f/4.5 *ED AiS out but I just haven't been able to make it happen. Instead, I have been working on redesigning some new business cards and retooling my logo and overall look (I have a beard now too). Here are the most recent drafts!

Front


Back


If you still don't get what the icon is (other than hopefully the immediate image of a camera you see, it also is supposed to more-than-vaguely resemble a "dk"). Hey-Oh! Now you see it? Oh..no? well...leave me comment then!

Previous Logo



It's definitely better than my previous logo which was a simple monogram of "DK" in a signature-esque style. My "D" is spot-on from my signature. The "K" just works as an inverse.

This is still only in the draft phase. I may be simplifying the logo a tad more but I work best when I take a break, come back with fresh eyes, and critique. Comments are welcome though!

Tuesday, November 9, 2010

Century Precision Optics Tele-Athenar 1000mm f/5.6 - Part II Performance




The Test

Click HERE to read Part I if you're lost...

For a little scale as to what 1000mm looks like, here is the test scene through a 50mm lens on a full-frame camera (D700). The turquoise box is the field of view of the 1000mm lens.


Performance

For fun, I threw in a crop from the key image made with the Nikon 50mm f/1.4 at 100%. Due to posting size restrictions, for the time being, I have posted the Century results at full-frame in a reduced size. Full size from the D700 is 4256 x 2832 pixels.

Nikon 50mm f/1.4 AF-D

Crop @ f/8

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Century Tele-Athenar 1000mm f/5.6

f/5.6 (wide open)

f/8

f/11

f/16

f/22

f/32

f/64 (sorry about the birds!)


Analysis


The Century Tele-Athenar 1000mm f/5.6 does not perform extravagantly wide open. In it's defense, most lenses do not. I do not know what kind of specs were required of this lens when it was designed but it appears it will have to be stopped down to be used for anything more than an enormous spotting scope.

Chromatic Aberration - In high contrast situations, this lens definitely exhibits some serious CA.

Vignetting - Clearly on a full-frame DSLR, the Tele-Athenar 1000/5.6 has some severe vignetting wide open and diminishes as stopped down but is present all the way through f/64.

Sharpness - This lens resolves quite well especially considering that at 1000mm many more factors come into play than at say 300mm such as weather, temperature, atmosphere, etc. Wide open the lens is soft but f/8 isn't too bad and f/11 is great. I think optimal aperture is actually around f/16 or f/22 with this lens.

Distortion - I don't see any noticeably severe distortion.

Contrast - The sample images have been aided by a slight curve in post process. The lens appears to produce good contrasty images but not as contrasty as my *ED Nikon glass. Also flare may have been a factor given the extremely bright day.

Flare - I used this on an overcast day and achieved some very nice, contrasty images. However, in this test on a very bright, sunny day, the lens produced slightly less contrasty images. The lens possesses an ample hood for protection against stray rays so this may have been due to atmospheric conditions.

Color - Images seemed to come out a bit dull in color. No especially beautiful rendering.

Bokeh - Possibly due to the number of aperture blades, along with the immense focal length, one can achieve some beautifully soft bokeh with this optic. I will work at getting some samples of this soon!


The Wrap-Up

The Century Tele-Athenar 1000mm f/5.6 is hardly a practical lens. At best it's a novelty, if not simply an anchor. I love it nonetheless. I suppose it's more for the pure shock factor of putting this on a tripod and pretending to be serious. The lens is capable of some very sharp images at smaller apertures.

It probably would make no sense to make a recommendation here, seeing as few will ever come across one of these. But in the off-chance you do find one, above provides a good sample of what you can expect and make your offer accordingly. I had a hawk flying overhead and attempted to "bird" with this lens. HA! That was a challenge!

Next stop with this lens? The Moon!...on the GF1...with some TCs

Wednesday, November 3, 2010

Blog News


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I have recently decided to sell off some of my favorite lenses to fund some continuing education. You can see whats for sale in the "For Sale" section of the blog! Two items sold right off the bat and will be going to good use! Thanks!


Nikon 50-300mm f/4.5 ED AIs



Here is another lens I was not looking for but sort of fell into my lap. I have been on the lookout for a good mid-range zoom since I let my Nikon 80-200mm f/2.8 AF-D go some time back in favor of the cash. It was a great lens but tended to hunt a little too much in low light, which was when I used it most. I decided the money would be better and I would eventually annie-up the cash for a 70-200mm VR. Well that still hasn't happened and probably won't for some time.

In the meantime, I am working on paying off some debt as well as paying for continuing education at the local college. I still keep a camera-fund going because it may be the only thing that keeps me sane. Recently this manual focus Nikon 50-300mm f/4.5 ED lens went up for sale for such a great price, I had to look into it. I had never really seen anything about this lens but knew the *ED meant great glass. After seeing it being offered on KEH in EX condition for over $800 and eBay for nearly $1000, this price was peanuts. I went ahead and bought it since I figured I could easily get my money back if the lens wasn't for me.

Wow. All I have to say is, "Wow". OK, so I actually have a lot more to say on this lens but that simple thought was the first and only thing on my mind when I was checking the sharpness of the first images I made with this lens. This lens is incredibly sharp, even wide open it performs unbelievably well. I haven't even seen a hint of CA yet.

Let me just say, if you find one for a killer price relative to those I have mentioned, I say go for it. The lens is manual focus and heavy, so it can be a beast to handle. The front filter is 95mm! Optically, it may be one of the best zooms I have used to date.

More on this to come!

Vivitar Series 1 VMC Filter



I didn't know these filters even existed but this came along with one of my Series 1 lenses. I couldn't sell it. It's too cool. And well-made to boot! I have never seen another one!

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Saturday, October 30, 2010

Century Precision Optics Tele-Athenar 1000mm f/5.6 - Part I



The Century Precision Optics Tele-Athenar 1000mm f/5.6

You may recall I found this lens a few weeks back via an ambiguous, local Craigslist ad. This lens is huge. Measuring 38" from the tip of the hood to the camera mount, the lens weighs over 15 lbs. (Some of that weight can be attributed to the heavy metal brackets on which this lens was originally mounted.). Although I didn't initially know anything about the lens and had no idea if I could do anything with it, as Rick from Pawn Stars often enthusiastically declares, "I wanted it!" A couple text messages and less than an hour after discovering the ad, I was driving home with this thing in my backseat! I took the gamble and now I needed to know 3 main things:

  1. Some History - Where did this lens come from? What was it used for?
  2. Optical Capabilities - How can I adapt this for use with my DSLR? Is it possible?
  3. How to Mount - If use with a DSLR is optically possible, I need a means to mount this lens on a tripod.

The Search for Info on Century Tele-Athenar Lenses

I contacted Schneider Optics, the company who purchased Century Precision Optics and asked them for some information on this lens. Schneider was surprisingly prompt in responding (A stark contrast to my attempts at getting info from the Tokina corporation) however, they had very little info to give. Even what the rep did have to tell me seemed more like speculation than fact. I also asked around on the Manual Focus Lenses Forum and one user, cooltouch (Michael), seemed to have more info and be much more confident than the rep from Schneider.

The rep basically said:

The Century Tele-Athenar 1000/5.6 was most likely contracted by the military and probably about 10-15 years old putting it around 1995-2000. Originally it probably sold for more than $4k and was a special order lens.

That's it. Despite my numerous questions, that's all I got.

Michael on the other hand had quite a bit more to help me out. He says:

"If the lens is white, it was military-contracted. If it's black, it probably wasn't. But it probably was used in the movie industry. CPO sold most of their optics to the movie industry and the military. Back in the 60s, photographers got wind of their optics and began requesting a line for 35mm still photography. CPO came out with the Tele-Athenar II line for still photographers. The main difference is the TA II's barrel does not rotate when the focusing ring is turned. The lens should also say it's a TA II if it is indeed one.

As far as its age, 10- 15 years ago is probably too young. I got the impression from talking to Bill Turner that, even though they still showed the TA lines in their catalog, they rarely sold one anymore, and this was the early 90s. So it's possible, but not all that likely that your lens is that young.

...
Anyway, according to my records, the 1000mm f/5.6 is a Tele Athenar and not a Tele Athenar II. It was made for movie work primarily and not specifically for 35mm photography. However, I don't see why it wouldn't work. I imagine it will take killer photos of the moon, for one thing."

Thanks Michael! Essentially this is good news! This lens can be used on modern DSLRs since they were used for cinema, a similar application. I have heard stories about some of these old large lenses being discovered but turning out to be very special purpose lenses. One user from MFL, nemesis101, was telling me of a lens he found long ago that turned out to be for aerial spotting duties with a minimum focusing distance of 3 miles!

As always, I will keep this section updated as more information surfaces.

Adapting The Lens For Use With A DSLR


Optically it's possible to use the lens. Now I need to figure out what parts are necessary for that adaptation. The lens was handed off to me with a rear mount that looked like this:


A seemingly arbitrary sized thread and an empty filter slot. In contacting Schneider, I found out this thread is a proprietary mount that was utilized by CPO on their Tele-Athenar lenses. Fortunately, the mount is still used today on some of their newer products! So the company had the parts for me to order. To use this lens on a DSLR, you need the following part:

0TM-00TC-00
(those are zeros) - Century Interchangeable to T-mount Adapter


Then you just need the correct T-mount for the camera with which you want to use this lens. They even had the 2"x 2" filter tray.

Issue #2 down. At this point I was leaning the lens on a deck post, while awkwardly attempting to support the back end and focus at the same time with an extremely narrow field of view. I think I'm going to need a tripod mount...

Mounting the Century 1000/5.6

The lens originally had two large metal brackets attached this to whatever rig it had been designed for. Structurally, it seems to me, it makes the most sense to start from these for a sturdy tripod mount. I began by gluing several 8" x 12" PVC boards together.

Next, I trimmed the boards to an even block.

Then the shaping began.

The process was pretty much just a lot of cutting, drilling, and sanding. Eventually I hope to really smooth everything out and paint it black. For now though, I was too anxious to use it. There's no sense in taking it to the final product if it doesn't work so I had to test it!

Objective 3 complete. Finally time for testing!

Specifications

Focal length: 1000mm
Angle of view:
2.1º
Max. aperture:
f/5.6
Min. aperture:
f/45
Elements/Groups:
unknown
Dimensions:
38" L
Aperture blades:
20

Performance


Click here for the performance review of this lens: Century Tele-Athenar Part II!

A Second 1000/5.6 Found! John Maycock shares his experience with this behemoth.