On 3/7/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Quoting Perry Pellechia <[EMAIL PROTECTED]>: > > > On 3/7/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > > > > > I have two mirror lenses and they both work fine on the DS > > > > > > http://members.iinet.net.au/~derbyc/index4/05_09_moon/01.htm > > > > > > They just work like M lenses (with one f-stop), so you use the AE-L (or > > green > > > button on the D) method. > > > > > > D > > Derby, > > They are actually easier to use in AV mode. Since they have only one > > aperture setting, setting the camera to AV mode will force open > > aperture metering. The camera will adjust the shutter for each > > exposure by pressing the shutter button. There is no need for the > > extra "manual" step of measure the exposure (green button or AE-L). > > > > Perry. > > > > Ah, very true > > But I still like M. It's useful if the metered exposure is out by more than > two > stops (happens often when taking moonlight shots, and you want to keep lunar > detail). > > D
Sure there is a use for M mode but the camera is not going to meter any differently using green-button/M mode and AV mode.

