sigma 18 fish eye for film


reso

Link Posted 29/03/2010 - 19:55
hi all
am i right in thinking if i put this lens on a dslr it becomes 27mm
if so would i lose the fisheye effect?please advise
many thanks
phill
k5iis sigma 10-20 3,5 hsm pentax da 16-45 f4 tamron 17-50 2.8 pentax 17-70 f4 sigma 18-125 hsm pentax sigma 50-200 hsm os
sigma 50-500 apo dg os kenko 1.5 pz af 1.5 tele tamron pz af 2.0 tele and a flash
pentax *ist film camera

K10D

Link Posted 29/03/2010 - 20:06
It would stay at 18mm but have a field of view of a 27mm lens.
Fish eye effect would not remain.

Regards

mikew

Link Posted 29/03/2010 - 20:08
But I think you'd get distortion?
---------------------------------------------------

You can see some of my shots at my Flickr account.

grahamwalton

Link Posted 29/03/2010 - 20:14
I have a M42 mount Sigma 16mm Fisheye and when I mount it on my cropped sensor DSLRs, the fisheye effect disappears. When put it on a Full Frame DSLR, the fisheye effect is present.
Friendly Regards
Graham

Dangermouse

Link Posted 29/03/2010 - 20:24
You'd need something like an 11 or 12mm lens to get a fisheye effect on a C-sensor. Very rare used as not many bothered to go wider than 28mm on film!
Matt

Shooting the Welsh Wilderness with K-m, KX, MX, ME Super and assorted lenses.
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