Samyang 8mm f3.5 Fish-Eye UMC CS II - Lens

Samyang 8mm f3.5 Fish-Eye UMC CS II - LensManual focus fish eye lens made for EF S mount digital SLRs by Samyang. It was designed for APS C sensors but can be used on full frame EF cameras as well with the lens hood removed. Like other Samyang lenses of the era, it has no electronic connection to the camera. Focus and aperture must be controlled manually. Plastic body available in black. 10 elements, 7 groups Minimum focus distance: 0. 3m Aperture blades: 6 Size: 81 x 78 mm Weight: 428g

with magnification adjustment down to 1:10 macro

ISO range: 100 or 400 (Via DX code)

400 and 800 ISO

Lens: Ricoh 35mm f3

Has 3 external contacts for communicating with the autofocus lenses

The R4s is a simplified version of the R4

ISO range: 25 - 4000 (Via DX code) or 12 - 3200 (Manual)

Size: 138 x 105 x 73 mm

Weight: 56g

Length: 113mm

1999 introduced Pentax 35mm AF film SLR

and EM but it will work in manual mode with almost all SLRs