On Feb 14, 2011, at 7:06 AM, Igor Roshchin wrote: > Sun Feb 13 07:44:17 CST 2011 > drd1135 at gmail.com wrote: > >> OTOH, I always try to shoot my 1.4 at 5.6. Not really low light but >> wonderfully sharp. For very low light I tend to reply on SR, physical >> support, and the hope of one day getting a K5. > > I am always surprised when people make a statement that SR compensates > for the lack of a faster lens (or for not using a flash). > > SR can be useful, but only when the subject itself doesn't move. > When the subject moves, - you want to have exposure time to freeze > the motion, and that's when fast lenses are helpful > (or a flash, depending on the circumstances). > And that's why Larry is pulling out his 50/1.4.
Motion blur of the subject isn't always bad, motion blur from camera shake is almost always bad. > > I find myself using my fa50/1.4 under the same circumstances, and using > 50-135 at other times (for 50mm focal distance), when I am not > lazy to switch to it from 17-70/4. > > Extremely subjectively (no tests whatsoever), - my impression of the > sharpness of my fa50/1.4 is similar to Larry's. > I tend to blame it on how I use the lens: because I always tend to push > it to f/1.4 where it's softer and the DOF is shallow. > Additionally, usually the ISO at that point is also set to at least 800 > if not 1600-3200. Hence, the combination of all these factors > lowers the expectation. Exactly. Interestingly, at one point last night I put my DFA 50 macro on the K20 to photograph IDs, and for the first part of the evening just used it as my 50 on the K-x with the 77 on the K20. When I switched to the 16-50 on the K20 I didn't shoot any more with the macro lens > > Igor > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
