The wife is out, the kids are taking their afternoon nap. So, here goes - the Vintage Pentax Short Tele Shootout!
Participants:
Super Tak 100/2.8
K 100/2.8
M 100/2.8
M 100/4 macro
Super Tak 85/1.9
S-M-C Tak 85/1.8
Images are center crops
I can't for the life of me find a hosting place that allows embedding/direct linking that doesn't resize. Let me know where to go, and I'll move it. For now, you'll have to through the link below - make sure you view full size.
Picasa Web Albums - Jens - Lens tests
Full size jpegs (uncropped) are here:
4shared.com - online file sharing and storage - download short_tele_shootout.zip
All shot at f2.8 and f4, 85's also at 1.8/1.9.
Subject intented to show bokeh, sharpness and handling of high contrast. No PP - straight from K10D Raw into Lightroom, exported with "sharpen for screen".
Something seems off with the exposure of the last Super Tak 85 shot. I ran out off battery just before that, changed the battery and must have messed something up.
My opinions:
Of the three 100's at 2.8, the S Tak shows some PF, which I suppose is due to the lesser coating. Between the M and the K, it's a tough call, both are nice, but at f4, the M stands out as having more contrast. On the other hand, the bokeh of the K may be a little softer/nicer. The S Tak seems to have the nicest bokeh at f4.
The macro is actually less contrasty than the M, which suprised me.
Looking at the 85's I think that my MF skills are lacking at 1.8/1.9 - dof is really shallow, and it's hard even though I'm using a split screen. The S-M-C does seem to have the upper hand wide open - more contrast and a lot sharper. Also, the bokeh has less "ring" effect. I can't tell if the colour cast on the S-M-C is due to CA or the fact that the elements have some yellowing. Both are great.
All in all, I'd have to say that the humble M 100 wins the "most overlooked performer/value for money" race. But then, there's the Bokeh of the S-M-C tak.
Last edited by jensm; 04-19-2009 at 08:28 AM.
Reason: Added link to zip