sigma 18 fish eye for film

reso
Posted 29/03/2010 - 19:55 Link
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 hsm sigma ex dg 24mm f1.8 tamron 17-50 pentax faj 18-35 pentax da 18-135 tokina 20-35 pentax A 50 f 1;1 7
pentax da*60-250 pentax da 55-300 sigma apo 150-500 hsm os
Pentax af aw 1.4 rear converter and a flash
K10D
Posted 29/03/2010 - 20:06 Link
It would stay at 18mm but have a field of view of a 27mm lens.
Fish eye effect would not remain.

Regards
Too far from a shore.
mikew
Posted 29/03/2010 - 20:08 Link
But I think you'd get distortion?
---------------------------------------------------

You can see some of my shots at my Flickr account.
grahamwalton
Posted 29/03/2010 - 20:14 Link
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
Posted 29/03/2010 - 20:24 Link
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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