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Third Party manufacturers – Nikon/Canon mount
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Anyone know why the likes of Fuij only make DSLR with Nikon mount, rather than Canon mount? Surely it doesnt require much manipulation in manufacturing process to make a Canon mount version as well? I remember Kodak made a DSLR with a choice of Nikon or Canon mount.
This morning Fuji announces development of the Fuji S5 Pro DSLR which I assume is Nikon mount only as well.And look at what happened the Kodak cameras!
The main issues are development costs and licensing. The Canon lens mount is significantly larger than the Nikon one and so would require a complete redesign of the mechanical aspects of the body. So as a business decision this would not make sense at all – why would Fuji try and compete against the number one player with an inferior camera? It’s also unlikley that Canon would license their lens mount to Fuji at a cost that would make such a camera viable.
Thorsten wrote:
And look at what happened the Kodak cameras!
The main issues are development costs and licensing. The Canon lens mount is significantly larger than the Nikon one and so would require a complete redesign of the mechanical aspects of the body. So as a business decision this would not make sense at all – why would Fuji try and compete against the number one player with an inferior camera? It’s also unlikley that Canon would license their lens mount to Fuji at a cost that would make such a camera viable.
Canon have historically been very tight about releasing lensmount and electronics details to 3rd parties, which is why Sigma lenses etc are “reverse engineered” to work with them and don’t always give reliable distance info (many Sigma owners complain of backfocus and TTL flash metering problems).
SteveFE wrote:
[(many Sigma owners complain of backfocus and TTL flash metering problems).
Do Sigma lenses have a back focus adjustment simular to that on Professional Video & TV Cameras. This would enable
the user to set back focus themselves. On the last Video Camera, a KY27. that I owned back in 1997 it had a Canon Lens with full back focus set up. All the Pro stuff had it in them days……….dont know if thats still the case. I still fine that TTL flash metering in digital cameras is not quiet reliable………even the new Metz which has all the bells and whistles and not much change out of ?1000 fails many of the tests that some of us put it throughGCP wrote:
SteveFE wrote:
[(many Sigma owners complain of backfocus and TTL flash metering problems).
Do Sigma lenses have a back focus adjustment simular to that on Professional Video & TV Cameras. This would enable
the user to set back focus themselves. On the last Video Camera, a KY27. that I owned back in 1997 it had a Canon Lens with full back focus set up. All the Pro stuff had it in them days……….dont know if thats still the case. I still fine that TTL flash metering in digital cameras is not quiet reliable………even the new Metz which has all the bells and whistles and not much change out of ?1000 fails many of the tests that some of us put it throughCould we be talking about two different backfocus adjustments here I wonder. In relation to the Canon focus issues (whether a lens focuses too far in front or too far behind the optimum point) it’s actually a very simple adjustment to make provided you have the Canon Service Software to do it. Getting your hands on that is even harder than getting your hands on Canon’s SDK!
As for TTL flash, I can’t say it’s ever let me down except when I recomposed the shot without thinking. Canon’s TTL flash utilises the active focus point to determine where to measure the flash from. So if you use the centre point to focus on your subject and then focus lock and recompose your shot, all of a sudden the flash is looking for something in the distance rather than your much closer subject.
Who knows why? An advantage to the Nikon F mount is probably/possibly relating to a return on investment. You can stick pretty well any lens made by nikon or for Nikon on the Fuji whereas the Canon likes different versions depending on the age and type of camera. Also some of the electronics and gubbings of the Fuji’s are taken from parent generation Nikons. ie. the Fuji S2 and S3 use a lot of bits from Nikon F80 (focus system, Flash system, even body). Maybe Nikon see the benefits of allowing older technology a second lease of life?
With modern “matrix/evaluative” exposure computers, the selected focus point comes into play for flash. I’m lazy and tend to use the centre focus point then recompose. I’m aware that if my subject is off-centred that the matrix metering may be fooled and compensate if necessary. This was always the case since auto-flash came to be although you can get a good-great exposure 9 out of 10 now.
Sigma lenses are well worth a look, they work (from the camera’s perspective) like an own brand lens but a lot cheaper.
http://www.pbase.com/lightrules/image/45240719/original Sigma24-70 2.8EX .v. Canon equivalent.
The Sigma has the “DG” symbol; it’s been optimised to straighten the lght from the rear element as much as possible for better digital camera performance.
Gone Off-topic a bit there, sorry
Si
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