All Forum Comments
The figures for the sensor don't seem to add up. The dimensions given don't give us a 43mm diagonal do they?
Comment by johnriley posted on full frame.. at 30/01/2008 - 18:20
The degree of movement might be different but also the mass of the sensor will be much greater as well.
Comment by johnriley posted on full frame.. at 30/01/2008 - 10:22
There should be ahealth warning on posts like that, viewfinder
I nearly fell off my chair.
I could do you a deal on a nice box camera. Takes 120 film. No pesky focusing or anything. Great results on Verichroime Pan, but a bit iffy with colour.
I nearly fell off my chair.
I could do you a deal on a nice box camera. Takes 120 film. No pesky focusing or anything. Great results on Verichroime Pan, but a bit iffy with colour.
Comment by johnriley posted on full frame.. at 30/01/2008 - 10:01
Quote:
Also, why camera makers don't mark the actual FOV on their digital only lenses? Do they want to challenge our maths knowledge by forcing us to do some multiplication everytime we mount a digital only lens???
They are marking the actual focal length and giving us the credit that we have brains.Also, why camera makers don't mark the actual FOV on their digital only lenses? Do they want to challenge our maths knowledge by forcing us to do some multiplication everytime we mount a digital only lens???
Different formats have always been marked with the actual focal lengths, so we know a standard lens is 15mm on sub-miniature, 24mm on 110, 50mm on 35mm, 80mm on 6x6cm and so on.
To be honest, I'd find it irritating to have everything marked as "35mm equivalent".
Comment by johnriley posted on full frame.. at 27/01/2008 - 21:03
Quote:
Wouldnt M, A, F, FA, DFA lenses be compatible with a FF camera..?
Yes in that they are full frame lenses. But then all the current range would be no good so Pentax wouldn't sell any new lenses.Wouldnt M, A, F, FA, DFA lenses be compatible with a FF camera..?
Not much sense in that... :
Comment by johnriley posted on full frame.. at 27/01/2008 - 08:48
No, they are not compatible with Nikon and Canon.
What designation do your lenses have? The best Pentax lenses to use, for full compatibility, will have an "A" setting on the aperture ring.
Manual focus ones will be called SMC Pentax-A and autofocus ones SMC Pentax-F or SMC Pentax-FA and so on.
Earlier lenses than these are still useable, but with some limitations.
What designation do your lenses have? The best Pentax lenses to use, for full compatibility, will have an "A" setting on the aperture ring.
Manual focus ones will be called SMC Pentax-A and autofocus ones SMC Pentax-F or SMC Pentax-FA and so on.
Earlier lenses than these are still useable, but with some limitations.
Comment by johnriley posted on Lense compatibilty between Z50P and K10D, K100D ? at 26/01/2008 - 15:58
No, I wouldn't either. I'm not sure what the upper limit is, but personally I'd be happy up to 10V.
Comment by johnriley posted on Safe trigger voltage at 26/01/2008 - 21:12
No, you don't get drummed out, but you might have to do 100 lines "I must use a Pentax..."
Old flashguns can be hazardous so you should measure the voltage across the gun's flash contacts. Identical looking Vivitars can read anything from under 10V to 300V so models do change under the skin.
I use IR Triggers now, so no contact is necessary but of course the guns have to be able to act as slaves.
There is a website that lists trigger voltages, perhaps someone could remind us what it is?
Old flashguns can be hazardous so you should measure the voltage across the gun's flash contacts. Identical looking Vivitars can read anything from under 10V to 300V so models do change under the skin.
I use IR Triggers now, so no contact is necessary but of course the guns have to be able to act as slaves.
There is a website that lists trigger voltages, perhaps someone could remind us what it is?
Comment by johnriley posted on Safe trigger voltage at 26/01/2008 - 09:55
It probably refers to placing gelatin filters somewhere at the rear of the lens, in addition to the normal front-rim screw in filters.
Comment by johnriley posted on Filter Drawer/Window? at 24/01/2008 - 23:21
Quote:
When the 35mm film format came out, was there the same chorus of complaints?
Or had interchangeable lenses not been introduced by then?
Totally impossible to take seriously those strange chaps with those toy Leicas. It'll never catch on.When the 35mm film format came out, was there the same chorus of complaints?
Or had interchangeable lenses not been introduced by then?
Nothing less thatn a 10" x 8" glass plate for me.
Comment by johnriley posted on Missed oportunity. at 25/01/2008 - 15:05
