Any updates on when the new Sigma 30mm 1.4 Art will drop?

Started Mar 29, 2013 | Questions thread
Shop cameras & lenses ▾
jbjones Regular Member • Posts: 411
Re: Any updates on when the new Sigma 30mm 1.4 Art will drop?

I read somewhere that you would need to calculate the min opening by dividing the focal length by the max f stop.  Therefore a 30mm lens at f1.4 would need ~22mm opening, not as big as you would think.

 jbjones's gear list:jbjones's gear list
Canon EOS 60D Canon EF-S 15-85mm f/3.5-5.6 IS USM Canon EF 70-200mm f/2.8L IS II USM Canon Extender EF 2x III Sigma 35mm F1.4 DG HSM Art
Post (hide subjects) Posted by
MAC
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow