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Point and Press photos of transit

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20 years 1 week ago #3094 by gnason
Replied by gnason on topic Re: Point and Press photos of transit
Hi Al,

Just a thought. If you want to use a fast shutter speed, perhaps a 200 or 400 ISO film would be better.

Using a 200 ISO film with a density 5 filter:

f/11 = 1/1000 sec
f/16 = 1/500 sec

Using a 400 ISO film with a density 5 filter:

f/11 = 1/2000
f/16 = 1/1000

Regards,

Gordon

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20 years 1 week ago #3095 by dave_lillis
Replied by dave_lillis on topic Re: Point and Press photos of transit
Hi,
I was experimenting with shutter speeds etc yeaterday on the Sun
What worked for me was iso 200 and exposures between 1500/2000 sec,
This was at F5 on a 4 inch refractor, I'll have more time to better this later this week, weather permitting, as there was light high level cloud at the time.

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

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