ChuckMc wrote:
I have three lens that mounted on a Konica. Assuming that no DLSR would accept that mount, I went without for a long period of time after the digital cameras took over and about 3-4 years ago bought an SX50. But, am I correct in that assumption?
tks,
Chuck
Konica Hexanon prime focus lenses are very sharp and contrasty--worth using if you
are willing to put up with some inconvenience:
* You'll need the proper adapter (which may or may not be available, and which may or
may not have to contain an additional simple lens -- see below).
* Autofocus won't work. So the DSLR must allow you to select manual focus mode
and you will have to focus manually. You'll be dependent on the focusing aids
present in the DSLR -- which vary from very good to non-existent.
* Meter coupling won't work, so (1) you will have to select manual exposure mode and
(2) you will have to stop down to the exposure aperature for metering (one normally
uses widest aperature for the viewfinder, so this is equivalent to depth-of-field preview).
Step 1. Figure out which Konica lens mount you have (there were three).
The mostly likely case is a Konica Autoreflex S1 or S2, since many of these were sold.
MOUNT TYPE FFD YEARS CAMERA(S) COMMENT
Konica F bayonet 45.50 mm 1960-? Konica F Only between 500-1500 cameras produced
Konica AR bayonet 45.50 mm 1965-1988 Konica Autoreflex S1, S2 Common
Konica KM screw 28? mm 1999-2003 Hexar Rangefinder Copy of Leica/Pentax M42 screw mount.
Step 2. Find out if there is a DSLR you're interested in that has an adapter which does
not contain a simple lens and
the lens can still focus at infinity.
Explanation: only a DSLR that has a flange-to-focus distance (FFD) considerably
shorter than 45.50 mm is adaptable to the Konica bayonet mounts with an additional
simple lens. (without it, it would act as an extension tube, increasing the focal length
of the lens at the price of not being able to focus at infinity).
If you cannot find such a DSLR, then you have three choices:
* Chose a DSLR that has an adapter with an optical element
* Consider a mirrorless camera--those all have very short FFDs. However, they have electronic
viewfinders which you might hate.
* Simply continue to shoot film. All the above Konica cameras are very good, the Fs are rare and collectable
and the Hexar rangefinder is among the sought-after film rangefinders.
Step 3. Make sure the digital camera you choose:
* Supports manual exposure mode
* Supports manual focus mode (turns off AF)
* Has a focusing aid that you like
I would find somebody who has that digital camera and will let you try manually focusing it
and manually stopping it down for metering. That way, you'll find out first hand what's
involved. It ranges from pretty simple to too much bother to impossible.
Step 4. Buy the adapter (make sure it's returnable!) and try it with the lens on the camera you intend to buy, if possible.
That way, if there is something bad about the adapter, you'll find out before you buy the camera.
The adapter will only cost around $40, and if it's returnable you're not out any money if it turns out
there is something bad about it.
More information:
https://www.shutterbug.com/content/how-mount-vintage-slr-lens-dslr-simple-guidehttps://en.wikipedia.org/wiki/Lens_mountGood luck!