Managing expectations


End of season
Unlike most of you, I have a finite photography budget! ;-) So, when I buy a new piece of equipment, I have to balance my desire, the functionality, and quality of the item. If I want a higher quality item, then I may have to wait a while. If I want an item that is good enough to get the job done, well I might be able to get it a bit sooner. The main thing here is in managing my own expectations.

Eventually, probably after Christmas, I will get a GPS for my camera. I just like the utility of recording locations directly to the image’s EXIF data. I was reading some comments about a particular GPS and had to laugh when someone asked:

Well, how accurate is it? I mean, if it’s not very accurate, then I can see little use for it as a photographic tool!

Dang! There are pixel peepers everywhere! How accurate does it have to be? Most are accurate to within 25 feet or so. For photography, that’s pretty darn close. 100 feet would be close enough for me. I just need to get into the area! Also, for a $149 unit, I don’t expect it to be military grade and accurate to within 5 feet, calculate for ionospheric delay, etc. “It ain’t that kinda party!”.

And so it is with lenses
As I’ve mentioned before, I’m not going to get my equipment lust get the better of me. :-) I’m sticking with the DX format for a while, even though I think that we’ve seen the last of that format in the pro-sumer Nikon line. It wouldn’t make sense, I don’t think to bring out a D400, for example. Now that Nikon has 3 FX sensor cameras, but who knows. I have been wrong before. Eventually, as things get better and better, I’ll probably move to the FX line, but what I have right now is more than adequate. Also, I like the extended reach, the 1.5 magnification, of the DX.

Another DX lens
I just purchased a Tamron 18-270mm lens. It’s not exactly a walk-around lens, but could be used as such. For one thing, let us say that when extended to 270mm, it’s not inconspicuous! :-) This lens replaced 2 lens, and 18-70 and a 55-200. I found that I frequently wanted to change between these two lens when I was out shooting, but sometimes became lazy and didn’t do it. So, why not have the best of both worlds?

My own expectations
I like Tamron lenses. They seem to have a quality build and, what I like most, Tamron is very sure of their products, offering a 6 year warranty on their lenses! No one in the industry comes close. This is my 4th Tamron. I also have a 200-500mm, 90mm macro and a 11-18mm. All perform well. I simply could not afford the equivalent Nikon glass. So, I’m covered from 11mm – 500mm.

When I purchased this latest lens, I expected that it would not be as good as my Nikon 80-200mm f/2.8, and I’m correct. It’s not. One, the Tamron, is a 15x zoom, the other is a 2.6x. Lower range zooms are generally better performers, especially on the outskirts of the zoom range. Usually, you’ll get some serious barrel distortion at the very low end and some pincushion distortion at the upper end. The Tamron 16-270mm certainly has these at the 18mm mark, but I expected that going in. Had it not been there, I would have been very surprised. Vertical straight lines are no longer straight near the edge of the frame and tend to bow. If you are seeing pincushion distortion, it’s usually seen on shots of the horizon, giving the horizon a slightly bowed look. It’s expected.

I don’t shoot architectural photos for a living, so this type of distortion is not bothersome. I don’t need absolute straight lines. A lot of it can be fixed in Photoshop, (Filter->Distort->Lens Correction) so it is not a point of contention.

I’ve only spent a couple of hours shooting with this lens and like it already. It has some small issues, but they won’t get in the way of the way that I shoot:

Issues noted so far:

  • Lens creep. If you are anywhere above the 18mm mark and put the camera in a downward facing position, the lens will rack out to somewhere near 100mm. Not really a problem for me as I generally shoot straight on. This happens pointing upwards, too. So, it is necessary to hold the zoom ring when shooting in an upwards direction. Again, not a problem. This makes up a very small percentage of my shots.
  • Stiffness: I’ve noticed a very stiff point at about the 100mm zoom mark. This makes zooming not so fluid in that area. Not really a problem unless I were following some action that required me to zoom past that point to get the shoot. Then, this might be a problem, but, for my style and what I intend to use the lens for, not a problem.

That’s all that I can think of and neither of these are issues for me. So, I’m happy with the lens. Others might take issue with these points, but it may affect their style, and so would become true issues, but for me … my expectations are managed and I’m very happy with the lens.

Note: All three images taken last night with the 18-270.

About Paul

Comments

9 Responses to “Managing expectations”
  1. Earl says:

    Nice color, sharpness and clarity in these photos. If the quality of a lens is judged by its results (these photos) then I’d say you’ve got a good lens. :-)

    I’ve had a number of Tamron lens and have a good impression of the company as well as the lens quality/cost ratio.

    The only problem I’ve experienced with a Tamron lens was this fall with a 28-300mm Di VC lens I purchased for use with a full frame (FF) camera. The lens AF/VC mechanism was eventually found to be defective. It was repaired in a timely manner (3 wks) under the 6 year warranty at no cost and now works very well.

    I also have the same 200-500mm lens as you and at one time had a Tamron 18-250mm DX lens. I gave this DX lens along with my Nikon D200 to my daughter when upgrading equipment and she is using it today with great results.

    Heck, if given a choice without cost being a factor we’d all want the very best glass. However, cost always figures in so we make compromises. The nice thing about digital photography being popular is it’s possible these days to have a good lens without breaking the bank. ;-)

  2. micki says:

    I just spent my birthday and Christmas money yesterday, and was making the same considerations as you’ve been mentioning when I made my purchases.

    I enjoyed your read on the Tamron lenses. I’ve never owned one and often wondered about their quality.

  3. Paul,

    I have been reading your blog for just over a year and I am always inspired by your great photos. I am also convinced that you could make great photos if all your lenses were made from old soda bottles!

  4. Thomas says:

    Those warm summer-like colors… just like in the good old days (aka “half a year ago” ;)

    I was wondering, how often do you use the long end of your 200-500 mm lens? Without any image stabilization I guess one needs quite a bit of light before it becomes usable without a tripod, or?

  5. Intern says:

    Hi Paul,

    Wish you and your family, Merry Christmas and a Happy New Year!!!

    I see a lot of wonderful images here! Keep it going…

    - Jyoti

  6. Paul says:

    @Thomas: The short answer is that I cannot even remember one time where I shot the 200-500 without a tripod. Ever. So, image stabilization is not an issue. I frequently will shoot with it at 500mm and I really like the results.

  7. Nice to finally have someone to ask about this lens :)

    I have the Nikon 18-200 VR and it creeps as well, yes, the term “zoom creep” may just as well have been invented for it.

    But really, this particular Tamron lens is extremely interesting. How’s autofocus performance? And precision?

  8. Paul says:

    @Andreas: The auto focus performance is about the same as my other lenses. The interesting thing about this lens as well as my 200-500mm, is that it is a 3.5-6.3. When you zoom all the way out past 200, the aperture becomes 6.3. This presents a problem in low light, naturally. Auto focus systems perform best at 5.6 or wider due to the amount of light needed to do phase or contrast focus.

    Along the whole range, the auto focus seems to be acceptable. I could see that this would not be a lens that I would choose to do sports with, perhaps, simply because of the auto focus. However, if I had it on my camera, saw some sports picture opportunities, then I’d use it. I’d probably do a lot of pre-focusing, though. It’s not all that fast. I have faster, more capable lenses for that.

    Having said that, it is still the right tool for the job in many cases, as most of subjects don’t move a lot and shoot from the tripod. The vibration control works very well, so it would seem to suite your hand-held style very well. As I mentioned, though, it is not a inconspicuous lens, especially when extended to 270mm. It’s quite obvious!