The A7s sensitivity is amazing. The EFCS (same as on the A7) works very well; first full-frame sensor to have a fully electronic shutter mode is big, even if it isn't capable of doing everything.
I've found the A7 to work very well with all of my SLR lenses, which are Leica R and Nikon manual focus lenses. From what I have heard, most SLR lenses adapted to it similarly provide excellent performance, modulo particular lenses. I've found it to be an excellent "FF digital SLR surrogate" for lenses that there is otherwise no replacement digital SLR body that I'm willing to spend money on (or none at all like for the Leica R lenses). Where the A7 and A7r have issues with adapted lenses is when you fit Leica M-mount lenses, which have a shorter mount register. Only some wide (less than 35mm focal length) M-mount lenses work to best advantage, typically the ones with retrofocus designs like the Leica Tri-Elmar lenses. The A7s seems to have less of these issues … the lower resolution sensor has less of the corner/edge/color shifting stuff. Godfrey On Aug 1, 2014, at 5:55 AM, Mark Roberts <[email protected]> wrote: > Have a look at this: > http://petapixel.com/2014/07/30/sony-a7s-astrophotography-review/ -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
