Frame Rates

Started by reconair, 02/15/2010 01:34AM

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Posted 02/15/2010 01:34AM Opening Post

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Join Date: Sep 2008

Location: Spotsylvania VA, US

Posts: 269

Which is better, slower or faster frame rates for planet captures?

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Scott Busby
A.K.A. Reconair

Carpe Noctum

Mortal as I am, I know that I am born for a day. But when I follow at my pleasure the serried multitude of the stars in their circular course, my feet no longer touch the earth.
- Ptolemy,c.150 AD

Posted 02/15/2010 01:12PM #1

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Join Date: Nov 2007

Location: Jamestown NY, US

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Faster, the better. This is why webcams are so popular for lunar/planetary imaging.

Jim

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Posted 02/15/2010 06:23PM #2

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Join Date: Aug 2003

Location: Myerstown PA, US

Posts: 32

I saw in your recent Mars post that you're using a Toucam and although what James said is true, the Toucam is limited by the fact that it only transfers data at USB 1.0 speeds. Using higher frame rates with a Toucam means you introduce data loss because the firmware in the Toucam needs to reduce the amount of data contained in each frame in order to send it to the PC.

Generally with a Toucam the highest framerate I've used is 15FPS.

I also believe most webcam imagers on this forum recommend when the seeing is really good to lower the framerate to 10FPS on order to capture the most detail.

OTOH if you buy a Dragonfly or similar camera that can do up to 60FPS via USB 2.0 then the faster the better.

Here's hoping for clear and steady skies...

Weiman

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