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View Full Version : Horseman SW-DII, Aptus 75 and Digitar 55mm



JimCollum
29th June 2008, 20:13
Tried out the 55mm digitar lens on the Horseman with a Leaf Aptus 75s. The files were processed in LC11 with sharpening set to 0, taken at ISO 100. These are 100% crops


f4.5
http://forum.getdpi.com/gallery/files/1/2/l_006631.jpg

f5.6
http://forum.getdpi.com/gallery/files/1/2/l_006632.jpg

f8.0
http://forum.getdpi.com/gallery/files/1/2/l_006633.jpg

f11
http://forum.getdpi.com/gallery/files/1/2/l_006634.jpg

JimCollum
29th June 2008, 20:16
f16
http://forum.getdpi.com/gallery/files/1/2/l_006635.jpg


f22
http://forum.getdpi.com/gallery/files/1/2/l_006636.jpg


f32
http://forum.getdpi.com/gallery/files/1/2/l_006637.jpg


f45
http://forum.getdpi.com/gallery/files/1/2/l_006638.jpg

Guy Mancuso
29th June 2008, 20:22
Jim looks like F11 is optimum and is starting to go at F22 but F16 still looks real good . Hard to tell between F11 and F16 though which is better . Leaning at F11 myself

ericstaud
29th June 2008, 21:05
Hi Jim,

I am using an Alpa with the 24, 35, 47, 72, and 100 digitars. I find that F11 is generally optimal but I often stop down more. With the 47 and 35 lenses the outside of the image will improve with more f stop. When shooting a high rise I will often shoot at 22 so that the top of the building will improve a little in sharpness while the center of the image circle will suffer a little in sharpness. In the end, the apparent sharpness of the image will be more uniform from top to bottom.

JimCollum
29th June 2008, 21:12
Hi Jim,

I am using an Alpa with the 24, 35, 47, 72, and 100 digitars. I find that F11 is generally optimal but I often stop down more. With the 47 and 35 lenses the outside of the image will improve with more f stop. When shooting a high rise I will often shoot at 22 so that the top of the building will improve a little in sharpness while the center of the image circle will suffer a little in sharpness. In the end, the apparent sharpness of the image will be more uniform from top to bottom.

These were taken on center. when i have time i'll take a look at the outer area as well. I'm also testing the 135mm