Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
04-01-2007, 07:41 AM   #1
New Member
TedP's Avatar

Join Date: Sep 2006
Photos: Gallery
Posts: 23
A professionals way of choosing a lens

There is a very good friend of mine that has just retired from professional photograpy. He was in business for over 50 years doing all forms of shooting. Here is how he would choose a lense. He would go to his store (Lens and repro in NYC) and buy six 6 lenses, Same brand focal length and speed. He would then go back to his studio and proceed to test all of them. Then he would choose the best one for sharpness and return the rest. His theory is this, ALL LENSES ARE NOT EQUAL. Even zeiss lenses would have differences in them. Even though the lens design is the same all lenses for the most part are not. The engineers would design them but not make them. In design they would be optimim but in constuction there would be some variance in one lens in the lens that would make a slight difference in some way.
This makes sense. To me that is why one person has a tack sharp lens and someone else with the same lens doesn't. In today's manufacturing process there is more control in testing but test results of that lens or any lense is given a + or - tolerance factor.
do you think for one moment that a major lense manufacture would pull any lens off the shelf and send it to a magazine for testing and not worry about the results. they pick the best one that tested the best and send those lenses.
they want to sell lenses not get crappy reviews, although sometimes I wonder.

Made a lot of sense to me, I just thought I would pass that on since there was so much discussion on lense sharpness ,contrast, etc. . I will not get mad or insulted if you disagree, but the same to you fella.
Happy shooting, keep the shutter actuations high.

TedP

04-01-2007, 08:12 AM   #2
DAP
Senior Member




Join Date: Feb 2007
Posts: 151
no doubt - cherrypicking is probably the best way to go about it. The problem lies in having the money to lay out for 6 lenses at one time. Another concern is finding 6 of any one type of pentax lens (most of the new models trickle onto the store shelves in small batches - with many used models it is hard to find one example much less six). I just buy one copy and judge the image that it produces (If I like it and feel that it was worth the money I keep it, if I don't like it I return it). In all honesty I don't think I would have the patience to test 6 lenses (or the eye to pick out the incredibly small differences between lenses).
04-01-2007, 08:28 AM   #3
DAP
Senior Member




Join Date: Feb 2007
Posts: 151
I gotta say though - I did have to return a 77ltd once. The focusing was really stiff and "grindy" sounding. The replacement was very smooth (I couldn't see any real difference in the quality of the images they captured though). So you are definately correct in saying that all lenses are not created equal.
04-01-2007, 10:00 AM   #4
Veteran Member
Alvin's Avatar

Join Date: Dec 2006
Location: Mississauga, Ontario, Canada
Photos: Gallery
Posts: 2,530
I don't have the luxury of buying out all the lenses at once, but at least my store is friendly enough to let me try out at least two of the same lens in the store at a time when they know I will buy at least one.

Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
design, k-mount, lens, lense, lenses, pentax lens, results, sense, sharpness, slr lens, test
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need help choosing a lens... Saxplayer1004 Pentax SLR Lens Discussion 6 09-18-2010 07:27 PM
Need help choosing my next lens!! Nimrad Pentax SLR Lens Discussion 3 02-15-2009 03:12 PM
Help Choosing a New Lens IronWolf Pentax SLR Lens Discussion 19 02-15-2009 12:44 PM
professionals in Toronto area? pete_pf Photographic Technique 0 11-04-2008 09:25 PM
Any Pentax Professionals ? huqedato Photographic Technique 29 03-23-2008 05:43 PM



All times are GMT -7. The time now is 07:32 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top