Stop Down Metering in K30 (with Extension Tube & Lens Reversed)
Hello guys, ive been reading about stop down metering, and up until now, i really have no clear understanding about it. From what i understand so far:
When Manual Lens Mounted Normally: (Im using Pentax SMC M 50mm 1.4)
On Manual Mode:
1. Tweak some settings on the camera to enable use of old manual lens to new DSLR body. Green Button, Enable aperture ring etc.
2. Set the desired aperture manually. (Aperture reading will be F00 since its M lens)
3. Focus on your desired subject.
4. Press Green Button to have the camera set the best shutter speed for that shot. (Light meter doesnt work)
5. Take your picture
So far, it works well. But can someone confirm if im on the right direction?
Also, can some PLEASE provide a simple and clear instruction on how to do stop down metering with the lens on an extension tube or with a lens reversed?
I tried using Vivitar Automatic Extension Tube i bought on ebay, new in box but very cheap. I mounted normally my M-50mm lens on the tubes and for some reason i cannot do the procedure above. I also tried have the lens mounted on reversed without the tubes, i cant do stop down metering. Its like trial and error.
i have read o the internet, someone said he set the aperture ring wide open, take a focus and meter, then set again the aperture as desired, then take the shot. Im confused how he did it on his Pentax camera.
Is it possible to Meter with extension tube on or with a reversed lens?
Or can someone give tips on how o do budget macro using the materials mentioned how to have a correct exposure, etc/
Sorry for the very long post. Thank you guys. I hope youll help me out...
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