Re: [APML]: film speed vs. shutter vib.

[Ian Turner <skyshooter@mindspring.com>]

>
>Slower film is better for planetary photography, correct? But the slower
>the film you buy the more vibration of the shutter being open longer, wich
>plays a big part of image degrading, espscially when shooting through an
>eyepiece. What speed film is best to choose?Thanks,
>      Dustin Lysiak
>patrick@iinet.com


I don't think that shutter vibration is the correct word here. The shutter
vibration will happen on a shakey mount. The folks with good mounts and
mirror lockup are more concerned with Atmoshpheric turbulance. If you look
at some eyepiece projection folks you might see they still have a seperate
guidescope. The reason is they view the intended planet/moon and wait for a
calm atmosphere.

I would prefer to start at 200 to 400 Asa for a newbe.


Ian Turner
email: skyshooter@mindspring.com
Browse My Web site at: http://www.mindspring.com/~skyshooter/