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Which of these apertures provides the greatest depth of field?
1) f/2.8
2) f/8
3) f/22
4) f/5.6
The light sensitive chemical in most photographic emulsion is based upon:
1) gold
2) silver
3) iron
4) hydrogen
Which of the follwing pairs of shutter and aperture cominations will both give the same actual exposure?
1) 1/250s f/8 & 1/500s f/11
2) 1/250s f/8 & 1/125s f/11
3) 1/250s f/8 & 1/125s f/22
4) 1/250s f/8 & 1/60s f/11
Which of these file formats gives the highest compression of digital data?
1) tiff
2) psd
3) jpeg
4) raw(or dng)
If a lens is marked "17-55mm 1:4-5.6" what does the "1.4-5.6" mean?
1) aperture varies with zoom
2) closest focus varies with zoom
3) focal length varies with zoom
4) magnification varies with zoom
Thank you