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Comment by chasto posted on Catch in focus- wow! at 06/02/2012 - 07:23
John
According to RioRico's post CIF works with AF lenses provided the "connection" is disabled and apparently this is achieved when the lens release button is pressed. Is this right?
In my test I moved towards the bookcase but equally well the bookcase (aka a wild animal) could have moved towards me: in either case the shutter would have fired at the same separation distance which corresponded to the sharpest focus. I'm also unclear over "focusing on a point" and the shutter NOT firing until "that point becomes in focus". Surely it's already in focus.
I'm keen to use CIF but (a) have no manual K lenses and (b) have a fear of using an adapter ring on my M42 lenses and not being able to get it off the camera. But that's a separate issue and if anyone has any suggestions...
Jim
According to RioRico's post CIF works with AF lenses provided the "connection" is disabled and apparently this is achieved when the lens release button is pressed. Is this right?
In my test I moved towards the bookcase but equally well the bookcase (aka a wild animal) could have moved towards me: in either case the shutter would have fired at the same separation distance which corresponded to the sharpest focus. I'm also unclear over "focusing on a point" and the shutter NOT firing until "that point becomes in focus". Surely it's already in focus.
I'm keen to use CIF but (a) have no manual K lenses and (b) have a fear of using an adapter ring on my M42 lenses and not being able to get it off the camera. But that's a separate issue and if anyone has any suggestions...
Jim
Comment by chasto posted on Catch in focus- wow! at 04/02/2012 - 18:58
Just tried CIF with my K5 using the steps listed by RioRico for an AF lens (hold lens release button etc). I defocussed on a bookcase and moved towards it until was sharp enough to fire the shutter. During this approach the focus motor ran more or less all the time - faster when farther away from the focus and slowing as the focus was reached. Is this normal? I can't see how this would work for wildlife unless it's hard of hearing.
Jim
Jim
Comment by chasto posted on Catch in focus- wow! at 04/02/2012 - 09:57
My name is Jim Methven. I'm originally from Dundee but have lived in Moreton on the Wirral for more than 30 years.
I'm semi-retired but still lecture a couple of days a week in The University of Manchester.
I've been taking pictures for many decades starting with a Praktika and later a Chinon (anything cheap with an M42 screw thread) and then a Minolta Dynax 800. My first adventure in digital was with the fantastic Optio 555 which regrettably was stolen, then a K7 and a few weeks ago a K5. I still have all this kit and can't contemplate getting rid of it.
I did some real developing and printing many years ago but had to abandon the darkroom to make room for the kids when they arrived. Now that they've flown I'm not allowed another darkroom so I've settled for developing the the occasion B&W film and dabbling in old techniques such as cyanotypes, gum prints etc, Most if not all of the old processes can be carried out in subdued light which by definition apparently, is best in the garden shed. These are all contact processes based on digital negs printed (A4) on transfer film and overhead transparencies.
If I have a particular photographic interest it's architecture but I'm also quite keen on landscapes and macros and I do find focus stacking quite incredible. Despite all the years of practice I've yet to fully master flash photography and while my wife no longer feels the need to carry a pair of welding goggles in her handbag I do still produce the occasional high key shot.
I look forward to learning new stuff and would be happy to pass on any wisdom I've acquired over the past many years
I'm semi-retired but still lecture a couple of days a week in The University of Manchester.
I've been taking pictures for many decades starting with a Praktika and later a Chinon (anything cheap with an M42 screw thread) and then a Minolta Dynax 800. My first adventure in digital was with the fantastic Optio 555 which regrettably was stolen, then a K7 and a few weeks ago a K5. I still have all this kit and can't contemplate getting rid of it.
I did some real developing and printing many years ago but had to abandon the darkroom to make room for the kids when they arrived. Now that they've flown I'm not allowed another darkroom so I've settled for developing the the occasion B&W film and dabbling in old techniques such as cyanotypes, gum prints etc, Most if not all of the old processes can be carried out in subdued light which by definition apparently, is best in the garden shed. These are all contact processes based on digital negs printed (A4) on transfer film and overhead transparencies.
If I have a particular photographic interest it's architecture but I'm also quite keen on landscapes and macros and I do find focus stacking quite incredible. Despite all the years of practice I've yet to fully master flash photography and while my wife no longer feels the need to carry a pair of welding goggles in her handbag I do still produce the occasional high key shot.
I look forward to learning new stuff and would be happy to pass on any wisdom I've acquired over the past many years
Jim