Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
04-18-2011, 05:03 AM   #16
Site Supporter
Site Supporter




Join Date: Mar 2009
Location: Gladys, Virginia
Photos: Gallery
Posts: 16,412
Nice review. Do you have any comments on border sharpness at longer focal lengths? This seemed to be the issue that Photozone found with this lens, but I don't sense nearly as much issue with it in your sample. Not sure of Klaus has a bad copy, or if you just can't see these sorts of things easily at web resolution.

04-19-2011, 12:02 AM   #17
Pentaxian




Join Date: Oct 2009
Location: North
Photos: Gallery
Posts: 3,932
Original Poster
QuoteOriginally posted by Rondec Quote
Nice review. Do you have any comments on border sharpness at longer focal lengths? This seemed to be the issue that Photozone found with this lens, but I don't sense nearly as much issue with it in your sample. Not sure of Klaus has a bad copy, or if you just can't see these sorts of things easily at web resolution.
Thanks.
I was really trying no to get mired in these 100% crops of everywhere as they are tedious to do and imo not the greatest criteria for a good photo
To me a photo is usually more 'happening' within the center/off-centre ('rule of thirds') area.
The eye naturally zones in on the interesting areas.
I almost always won't go nit-picking on the edge of the screen on any photo by anyone.

A BIG disclaimer before showing some of the crops. As mentioned before I never intended to do edge crops for my test shots.
As such my calendar test shots did not care much about perfect parallel alignment to the camera sensor, though I at least eye balled it.
The calendar is also the standing type, so it tapers at the top.
Therefore, I won't be surprised that some tilt/skew was present and the resultant loss in DOF may cause a further loss in edge sharpness.

So take these as reference with some pinch of salt.


Here they are from the 135mm f8 shot.
JPEG w/o sharpening and any PP.

Actual shot



Center for reference



Bottom left 1



Bottom left 2



Top right 1



Top right 2
Center for reference



If based on the photo in this case, the less sharp area would be perhaps the outer 1/8 of the photo.
10-26-2011, 01:08 AM   #18
New Member




Join Date: May 2011
Location: Triesen
Photos: Gallery | Albums
Posts: 23
I love your review!!

Hello pinholecam,

I love your review.
The lens is really great.
I bought it as a kit together with a Pentax K-5
The lens is really excellent.
Your pictures are really great!!

regards from Katja
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!
f3.5-5.6, k-mount, lens, pentax, pentax lens, review, slr lens, smc pentax-da 18-135mm
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need advice: Pentax SMCP-FA 135mm f/2.8 vs smc PENTAX DA Star 50-135mm F2.8 ED bladerunner0427 Pentax SLR Lens Discussion 35 12-03-2010 07:17 AM
SMC Pentax-FA 135mm F2.8 [IF] mini-review rob1234 Pentax SLR Lens Discussion 4 11-17-2010 05:54 AM



All times are GMT -7. The time now is 09:35 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