William Robb wrote:
----- Original Message ----- From: "Don Williams"
Subject: Re: long lens for birds?
That's strange. You would expect the opposite considering the sensor
is so much smaller than the film frame.
Digital sensors seem somewhat less forgiving than film in this regard.
William Robb
I think you're right about this. The sensor (for some technical reason)
is more sensitive to CA than film. I put the Sigma
400/5.6 APO on the D yesterday and took some bird pictures. I find there
is CA that I haven't seen on film*. However,
The Sigma 70-300 continues to please. Especially with a Tokina doubler.
But CA must always be smaller closer to the
centre of the field.
* As before this CA is only detectable at pretty large zoom %s in Photoshop.
D
--
Dr E D F Williams
www.kolumbus.fi/mimosa/
personal.inet.fi/cool/don.williams/
41660 TOIVAKKA – Finland - +358400706616
