Originally posted by wtlwdwgn I hope you don't have too many Pentax bayonet mount lenses because you won't be able to use them on a Canon as there are no adapters. You can use the older M42 screw mount lenses with an adapter but they'll be manual focus and exposure.
from what I can gather there is no issue in 'mounting' k mount glass on canon bodies, there are adaptors which give infinity focus (but only physically fit on EFS cameras rather than full frame)
and manual focus/exposure isn't an issue- all but one of my lenses are pentax M, I actually prefer it to auto- the split screen is great to focus on and using the green button to spot meter gives me more accurate results (or at least the results I want), and I have more of an understanding about the exposure triangle now, basically the pentax system really works flawlessly for me now, even using flash with all manual settings
but yeah I think m42 might be the way to go- I have an EF film camera so I will test the lenses on that before trying on a DSLR
edit: by manual exposure you do mean that stop down metering will work right, or do you mean that there will be no meter reading and i'd have to select the shutter speed myself?
This could be a pretty major deal breaker
Originally posted by sajah As far as I know you can only use Pentax lenses stop down with Canon body. So yes the viewfinder will darken. And there is no Green Button, just an exposure meter (line) and you have to adjust aperture/shutter/iso until the meter says you have correct exposure.
I'm curious, from the spec it's only slightly better than K20D viewfinder (1x mag 100% frame vs 0.95 mag 95% frame). Is that really much better? I would agree that 5D viewfinder is much better but as 7D is still APS-C, it's a bit hard to believe. Anyway, sometimes I lust for Canon too but for me its their FF (5D) that attracts me.
I think i'll have to get a k mount to canon adaptor and try it myself, but from what you say I think canon is not going to give me the ease of exposure I get from using AE-L on my DL (no green button)
I've heard you can get adaptors with EF chips on them to give focus confirmation- maybe they will allow for proper metering too
the 5dm2 isn't a 100% viewfinder, and is only fractionally bigger than the 7d (at least in my testing). The 550d was the same size as the pentax pentamirrors, the d300 is bigger and brighter still, then the 7D is brighter/bigger still- with the 5D being only marginally larger
I'd buy a k7 tomorrow if it did 60fps, or at least 24p
and yes I will use 60fps, and yes 24p really is that much better
i'd buy a kx, but I want a pentaprism viewfinder and a WR body, the 550d has no wireless flash control so that leaves me with the 7D (and possible
the kx wouldn't be a waste of a purchase though, it could easily be my backup body in the future- if I could put my focussing screen in it then that would be a big big plus (not that the screen was expensive, but still)
really hope the new pentax body is everything I want- don't really want to have to go to canon, but i've already lost enough film opportunity over summer, and as soon as my course starts again in september i'm going to be straight into a project where video will be required, so i'll have to buy something by then- just got to make sure I make the right decision