So I dropped by the local thrift store yesterday and found an old Pentax Asahi case with a SMC Takumar 3.5/135mm as well as an off brand 70-230 lens. The bag also had a bunch of extras. some of those extras where 3 different extension tubes. I didn't know what you called them at first, but for some reason I knew from reading somewhere that they were for macro work.
Each of the 3 tubes has a number on them. 1,2, and 3. I tried them out with the 135 and they work well.
My question is this; When I attach lets say the extension with #3 on it, do I divide my focal length by 3 ( which would be 45) and enter that result when I turn my K10D on and it asks for the length? I'm thinking this may not be correct..??? Any help would be greatly appreciated.
Here are a couple of test shots. The bug in one of the photos is so tiny I didn't even see it until I went to take a macro of the flower it was on..He is literally 1/8" in body length roughly.
I took this handheld for time sake and didn't sharpen the photo at all. I was also still shaking from my favorite cup o joe, as well as it being slightly windy out. In the shade too..
Cropped 74%