Using bellows is very bad for dust. All that extending in and out
sucking the air in and blowing it around.
I limit the effects a bit by having a 2x converter between the camera
and the bellows. A common set up for me is IstD:2x:bellows:reverse
mounted FA50f1.4. Gives about 8 times to the image plain. And it does
show the dust.
Back in the days of film I was really upset after returning from a trip
with 8 rolls of exposed slide film which ALL showed a hair looping about
a quarter of the way up the image. It was easily removed but annoying
that it was there for the entire trip. Digital dust is easier to remove
and as I travel with a small laptop I pick it up within a day.
Leon
http://www.bluering.org.au
http://www.bluering.org.au/leon
William Robb wrote:
----- Original Message ----- From: "Rob Studdert"
Subject: Re: Why dustproblems ? (WasRE: *ist D vs DS2, some questions)
On 30 Mar 2006 at 6:25, William Robb wrote:
Some people are looking for problems, and find them.
Others aren't, and don't.
I often only find I have dust problems after a session of macro shots :-(
I did some stuff a while back, istD on the bellows, magnifications
somewhere around 3-4x life size.
I had no idea you could have that much dust on a sensor and still take a
normal picture.
William Robb
