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11-17-2009, 11:20 AM   #16
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QuoteOriginally posted by engl Quote
If you are still checking this thread, could you possibly see what the white balance is set to for the pictures? I find that the AWB picks way cooler colors when using old M/K glass, but equalizing white balance gives me fairly similar rendering between old primes and new zooms.
Interesting that you should make the comment about white balance. I have noticed that some (not all) of my M42 glass tends to "fool" the automatic white balance on my K10D towards the cooler end of things in certain lighting conditions. This is particularly true with my Russian Helios 44M and Jupiter-9 lenses. I don't know if it is related to coatings or glass formulation, but the affect is definitely there.

As you mention, equalizing the WB in PP corrects the issue. Alternatively, calibrating the WB before exposure with a white card is also an option.


11-17-2009, 10:30 PM   #17
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I'm late to the discussion, but thank you ilya for this comparison. I've been considering getting the Tamron 70-200, and I used to own the K135/2.5, so this comparison was especially interesting to me.

I'm really not surprised about your results, given the excellent reviews and sample images of the Tamron I've seen from other posters here. What is a bit surprising is the different colour - the SMC shots have a magenta cast - and like some other posters have mentioned, this can probably be corrected through WB adjustment.

Finally, allow me a moment to get sentimental, if you will. The K135/2.5 was one of my favourite lenses back in my film days (it was stolen before I had a chance to use it on a digital body). The build and image quality were both excellent. I really missed that lens. While not that rare, I have never seen one for sale in person (otherwise I would've picked up a replacement). But these days, my A*135 takes the spot that it once held in my heart.

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