Kim Coxon
Moderator
I'm afraid not. You are effectively using a preset lens. I would seriously look at the K lenses. The M42 ones used to be a bargain but have gone up quite a bit in price because so many want them for dSLRs of all sorts uing an M42 adapter. Any K mount will give you auto stop down but with the early ones and the M series, you will only have manual metering on the dSLRS. If you want all the meter modes, you have to use an A lens or later.
Kim
Kim
Pitxu said:Back to Pentax. With m42 lenses and adapter do you retain auto aperture?
rolleistef
Well-known
d30gaijin
Noctilusting
A snow slush day, roads only slightly hazardous once we get off the range and on to the main roads.
The wife wants me to drop her off at the thrift store while I cruise to the local sporting goods store for reloading components, which I do.
I get my reloading stuff and head back to the thrift store to pick her up. She's not done shopping so I decide to look around, which is usually fruitless for me.
First check, which has always been a bust, was to the junk cameras they have a few of. And when I say junk I think you know the type of cameras I refer to. Still I force myself to have a look, one never knows. Low and behold a nice 35mm film Pentax P&S IQZoom 920 is on the shelf. And not only does it actually show some operating functions, is it fully functional (once I figure its operation out) with a still good Duracell 123 battery in it, and it shows very little normal use wear. $4.50? Sold! It will make a great toss in the glovebox camera.
Moving down the shelf I spy a leather lens case that looks suspiciously Pentax screwmount, and in pretty good shape. A check of the top confirms with the "Takumar 4/50" stamping in the leather. It's in good shape and I can always use a nice Pentax screwmount lens case. The price tag says $7.50. I figure I can talk them down on the lens case price. Picking it up it is heavy. THERE IS A LENS IN THERE! Fumbling slightly I unbutton and open the lid and there's an upside down screwmount lens inside. Being the pessimist I am I figure it to be a common as dirt 55/1.8 or 50/2. Still, for $7.50 it's a deal regardless its condition. Pulling the lens out and flipping it around it shows to be in beautiful condition overall with a mint lens cap. I remove the lens cap and behold that I have in hand a 50mm f/4 Super-Macro-Takumar. Checking it over it is in excellent condition, mint glass with just a hint of wear on a very few of the lens's black surfaces (and I'm be very critical here). Alas, the aperture diaphragm is a bit sluggish but moves through all settings. For $7.50 I can handle it. In stop down mode on my istDS it will work perfectly.
Deals are still out there folks, just keep an eye open for them. I can't tell you how many thrift shop adventures I have been on with the wife against my will. I usually end up sitting and admiring one or more of the used easy chairs reading a book while she shops, but this trip paid off for a change, big time!.
The wife wants me to drop her off at the thrift store while I cruise to the local sporting goods store for reloading components, which I do.
I get my reloading stuff and head back to the thrift store to pick her up. She's not done shopping so I decide to look around, which is usually fruitless for me.
First check, which has always been a bust, was to the junk cameras they have a few of. And when I say junk I think you know the type of cameras I refer to. Still I force myself to have a look, one never knows. Low and behold a nice 35mm film Pentax P&S IQZoom 920 is on the shelf. And not only does it actually show some operating functions, is it fully functional (once I figure its operation out) with a still good Duracell 123 battery in it, and it shows very little normal use wear. $4.50? Sold! It will make a great toss in the glovebox camera.
Moving down the shelf I spy a leather lens case that looks suspiciously Pentax screwmount, and in pretty good shape. A check of the top confirms with the "Takumar 4/50" stamping in the leather. It's in good shape and I can always use a nice Pentax screwmount lens case. The price tag says $7.50. I figure I can talk them down on the lens case price. Picking it up it is heavy. THERE IS A LENS IN THERE! Fumbling slightly I unbutton and open the lid and there's an upside down screwmount lens inside. Being the pessimist I am I figure it to be a common as dirt 55/1.8 or 50/2. Still, for $7.50 it's a deal regardless its condition. Pulling the lens out and flipping it around it shows to be in beautiful condition overall with a mint lens cap. I remove the lens cap and behold that I have in hand a 50mm f/4 Super-Macro-Takumar. Checking it over it is in excellent condition, mint glass with just a hint of wear on a very few of the lens's black surfaces (and I'm be very critical here). Alas, the aperture diaphragm is a bit sluggish but moves through all settings. For $7.50 I can handle it. In stop down mode on my istDS it will work perfectly.
Deals are still out there folks, just keep an eye open for them. I can't tell you how many thrift shop adventures I have been on with the wife against my will. I usually end up sitting and admiring one or more of the used easy chairs reading a book while she shops, but this trip paid off for a change, big time!.
Mudman
Well-known
one thing to keep in mind, do NOT go by the red box for focusing - it is often in error. Wait for the green hexagon to light up, that when the camera is truly in focus. I use a 55mm smc tak, a sears f2.8 28mm and a 2x teleconverter on my k10d. Also have a biotar 58mm f2 that is in serious need of a cleaning and relubing. Someone post some pictures taken with this lens to make me actually want to have it in use.
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