Is the DOF that good?

Steven Thomas · September 21st, 2007, 05:54 PM

No thoughts on my previous question, or has it been another day with to much coffee? LOL

Daniel Epstein · September 22nd, 2007, 09:32 AM

When Philips came out with an SD camera years ago with a 1/2 inch sensor the difference they claimed between the DOF of the 1/2 inch and the DOF of a 2/3 inch sensor was about one stop. If you were shooting 2.8 with the 1/2 chip the DOf was about the same as shooting at 4 with 2/3 inch chip at the same angle of view. This was a pretty big advantage for the 2/3 inch chip. I would expect a similar difference between 1/3 and 1/2 advantage to the 1/2. Using the longer part of the lens and shooting wide open on the F Stop can help in all cases but you should have more margin for adjustment with the bigger chip.

September 21st, 2007, 05:54 PM	#16
Steven Thomas Trustee Join Date: Sep 2005 Location: Gilbert, AZ Posts: 1,896	No thoughts on my previous question, or has it been another day with to much coffee? LOL

September 22nd, 2007, 09:32 AM	#17
Daniel Epstein Trustee Join Date: Jan 2006 Location: New York, NY Posts: 1,267	When Philips came out with an SD camera years ago with a 1/2 inch sensor the difference they claimed between the DOF of the 1/2 inch and the DOF of a 2/3 inch sensor was about one stop. If you were shooting 2.8 with the 1/2 chip the DOf was about the same as shooting at 4 with 2/3 inch chip at the same angle of view. This was a pretty big advantage for the 2/3 inch chip. I would expect a similar difference between 1/3 and 1/2 advantage to the 1/2. Using the longer part of the lens and shooting wide open on the F Stop can help in all cases but you should have more margin for adjustment with the bigger chip.