Testing shutter speeds on vintage camera
Testing the shutter speed accuracy of a 1957 Asahi Pentax "AP" film single lens reflex using a Phochron XA shutter speed tester. I purchased one of the last Phochron units, direct from the inventor Eric Bergstrom. I contributed to his kickstarter when he was developing the unit, but only got around to purchasing one after he decided to end production. He only had left a few units where the plastic case was not completely finished (the holes were never cut for the openings). Until I get around to cutting the holes, I can still use the unit as-is. It works fine, as does this 65 year old camera. The shutter speeds are pretty accurate - here the test of the 1/100 s speed shows 1/111 s. Photo taken with the HD Pentax-FA 31mm Limited lens on a Pentax K-1 II DSLR.
Testing shutter speeds on vintage camera
Testing the shutter speed accuracy of a 1957 Asahi Pentax "AP" film single lens reflex using a Phochron XA shutter speed tester. I purchased one of the last Phochron units, direct from the inventor Eric Bergstrom. I contributed to his kickstarter when he was developing the unit, but only got around to purchasing one after he decided to end production. He only had left a few units where the plastic case was not completely finished (the holes were never cut for the openings). Until I get around to cutting the holes, I can still use the unit as-is. It works fine, as does this 65 year old camera. The shutter speeds are pretty accurate - here the test of the 1/100 s speed shows 1/111 s. Photo taken with the HD Pentax-FA 31mm Limited lens on a Pentax K-1 II DSLR.