Quote:
Originally Posted by Joe
I use a 15-30mm Sigma, which at 15mm isn't exactly a very wide on cropped (DX) sensors, but when fitted to full frame film body (F5) it is seriuosly wide, but of course I then don't have the convenience (or control) of the digi capture. (the first time I've ever admitted that one I think!)
Not that I can justify it at the mo, but that leaves two options open to me for those wider shots. Get an full frame (FX) digi body to fully utilise the 15mm, or get a wider than 15mm focal length lens. Both answer the solutions of a wide view, but picture perspective massively different.
Ideally wouldn't it be lovely to have a 8-24mm full frame lens!! 
I'm kind of leaning toward a super-wide/ semi fish-eye option that can be used on both formats.
Ideally I wouldn't want DX format only lenses in my kit bag, just in case I do use film, or get a D700 or D3 one day! 
Anyone any further thoughts on this hypathetical dilema? |
I went through this dilemma when I upgraded from my (Canon) 17-85 IS to the 24-105 L IS as I then hadn't got anything remotely wide angle - not that the 17-85 was particularly wide on a crop sensor. With the 24-105 and the 70-300 I had lenses that would fit a full frame body should I change my 20D for a 5D (soo tempting now with the new one
) at some time in the future
I looked at the Sigma 12-24 (my understanding is the the 10-20 while it may fit on a full frame body it will suffer sever vignetting) but the difference that 2mm makes on a crop body is quite significant. In the end I decided to go for a lens designed for the crop sensor and chose the Canon 10-22 over the Sigma, both on the basis of performance and that if I did get a full frame body at sometime in the future I could sell it without too much loss and buy a 16-35 (if I could afford it) or a 17-40 (if not). As Nikon don't offer anything that goes as wide as 10mm (I don't think) I would say go for the Sigma
I have to say I love this lens and its great for going out set on 10mm f8 manual focus set at 1m gives a dof from 50cm to inf and getting on my belly gives a whole new perspective on life
like this where I was only about 4 feet from the lady with the guitar
