Petzval Closeup / Macro Photos Anyone?

**rguinter** · 12-Apr-2011, 03:20

Originally Posted by Jon Wilson

Very nice Bob. Do you recall what film you were using? Jon

Sure Jon. specs for the crocus photo:

Tachihara 4x5 inch
Portra VC
Petzval approx f3-f4
1/125 sec w/ 3-stop ND
White areas were eV 14

**Rick A** · 20-May-2011, 15:12

Cambo SC II w/4.5/150mm Doppel Anastigmat in Pearl Rapid shutter. TMY in Pyrocat-HD, printed on Kodak Polycontrast III RC 5x7.

Found this old cog along side the road walking home the other day, it's only 5cm in diameter at its widest, perched atop a can thats been painted light gray.

**Jim Galli** · 20-May-2011, 15:15

Originally Posted by ralnphot

Cambo SC II w/4.5/150mm Doppel Anastigmat in Pearl Rapid shutter. TMY in Pyrocat-HD, printed on Kodak Polycontrast III RC 5x7.

Found this old cog along side the road walking home the other day, it's only 5cm in diameter at its widest, perched atop a can thats been painted light gray.

Looks like a pinion spider gear from a Ford Model A.