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dritz · 03/16/07, 06:13 PM

An old debate, I know. But I'm considering adding a 90 APO-M to my bag. I already have the 75 'cron. Now, that lens is magnificent. Short focus throw, light weight, small size, optical excellence, 0.7m minimum focus distance, and (most importantly) a human perspective ...

About the 90? Optical excellence is unquestionable. Longer focus throw can make it difficult to use in some fast moving situations, 1m minimum focus distance, big (though not oversized), heavy (but not much heavier than the 90/2,8).

The question comes down to perspective. I wish to further narrow the background from the field of view. Will the 90 buy me that much over the 75? Assuming the same subject size in the 90 as one has with the 75... I guestimate the elimination of about a third of the background area.

Other considerations?

Then again, maybe I'm just convincing myself to get another titanium lens! We can rationalize anything!

03/16/07, 06:13 PM	#1 (permalink)
dritz Benutzer Join Date: 10/22/02 Location: Seattle Posts: 72	90 vs, 75 Summicron An old debate, I know. But I'm considering adding a 90 APO-M to my bag. I already have the 75 'cron. Now, that lens is magnificent. Short focus throw, light weight, small size, optical excellence, 0.7m minimum focus distance, and (most importantly) a human perspective ... About the 90? Optical excellence is unquestionable. Longer focus throw can make it difficult to use in some fast moving situations, 1m minimum focus distance, big (though not oversized), heavy (but not much heavier than the 90/2,8). The question comes down to perspective. I wish to further narrow the background from the field of view. Will the 90 buy me that much over the 75? Assuming the same subject size in the 90 as one has with the 75... I guestimate the elimination of about a third of the background area. Other considerations? Then again, maybe I'm just convincing myself to get another titanium lens! We can rationalize anything!