obivously you shove in the adapter on and theres many vids of that online , but how do you meter properly? I realized recently that pk era film lenses and their respective bodies have a little turning pin that pokes out. When the aperture turns, it turns the pin to help give the aperture number to the body to help correctly meter. I mean sure, you can press the m42 lenses button that stops down the aperture, but i still dont get how will help the light meter if it is not being directly told the aperture number in the body. Unless the adapter turns the pin all the way open for metering , and you simply stop down to your aperture to get a readout , but i still dont get how this would work because wouldnt the pin on the camera body detemine change in metering when the aperture is changed?I cant tell if im being a whiny ass bitch and overthinking it and it will be fine when i get an adapter or if i will need to buy an external light meter for my camera.TLDR: worried metering wont work properly on pk bodies when using the m42 adapter , and that i will need to buy an external one. Will i need to buy an external meter or what? If it helps the camera bodies i own that are pk are a ricoh kr5 and a pentax p30.[EXIF data available. Click here to show/hide.]Camera-Specific Properties:Equipment MakeCanonCamera ModelCanon EOS 7DCamera SoftwareAdobe Photoshop Camera Raw 8.4 (Windows)PhotographerKristaps HohsMaximum Lens Aperturef/4.0Image-Specific Properties:Horizontal Resolution300 dpiVertical Resolution300 dpiImage Created2014:07:14 01:28:36Exposure Time1/200 secF-Numberf/8.0Exposure ProgramManualISO Speed Rating160Lens Aperturef/8.0Exposure Bias0 EVMetering ModePatternFlashNo Flash, CompulsoryFocal Length105.00 mmColor Space InformationsRGBRenderingNormalExposure ModeManualWhite BalanceAutoScene Capture TypeStandard
>>4338358you stop down to meterthat is all
>>4338364danke shon
on my k70 i press a button which makes the mirror flip up and the lens stop down to meter and that changes the shutter speedthe camera won't know the aperture
>>4338364>>4338463yikes. why bother then? selling this piece of shit
>>4338464Such is life when adapting ancient trash
>>4338463There are two types of adaptors. For lenses that don't have an auto/manual switch, you need an adaptor with a step down at the rear of the thread that permanently depresses the stop down button that protrude from the rear of the lens housing. >the camera won't know the apertureIt does though, it's wide open if you haven't depressed that little button and the k-mount cameras are incapable of doing that. They use a completely different mechanism.
