Re: Digital reflex vs Webcam

From: Martin Frey (martinfrey_at_snipclara.co.uk)
Date: 12/07/04


Date: Tue, 07 Dec 2004 10:11:05 +0000

rmollise@aol.com (Rod Mollise) wrote:

>If you just want to image the planets, go the webcam route. I'm convinced
>nothing will beat 'em (when combined with Registax) for planetary detail. I've
>found that you really start getting the details _down_ on Jupiter, for example,
>after about 300 stacked frames. You probably will not be able to take 300
>frames with a DSLR in the 90 seconds or so required to prevent smearing due to
>planetary rotation. Also, the small pixels of the webcams are very well suited
>to high res imaging.
>
>If you also want to shoot the deep sky, and maybe terrestrial images, get the
>DSLR.

Expand the thread - where do the dedicated ccds - SBIGs and Starlights
- fit in with this analysis?

-----------------------------
Martin Frey
http://www.hadastro.org.uk
N 51 01 52.2 E 0 47 21.1
-----------------------------



Relevant Pages

  • Re: A Step Backward ?
    ... per pixel is exactly the same in both cameras at the diffraction limit since ... so the DSLR superiority is such that it allows them to match ... pixels that you so frequently rail against. ... one which bumps into or exceeds the diffraction limit you mentioned. ...
    (rec.photo.digital)
  • Re: Mirror lock up
    ... Bayer filter dSLRs produce images with about 50% of "dead ... So a 14MP dSLR would produce images good for 7MP ... the percentage of "live pixels" is much lower; ... you only need a resolution of 300 dpi. ...
    (rec.photo.digital)
  • Re: Digital reflex vs Webcam
    ... >> You probably will not be able to take 300 frames with a DSLR in the ... >> 90 seconds or so required to prevent smearing due to planetary ... Most recent images ...
    (sci.astro.amateur)
  • Re: STATISTIC:how many megapixels enough for you?
    ... The incremental number of pixels per frame would be a lot larger, ... Maybe in another year or so I'll break down and get a FF dslr. ...
    (rec.photo.digital)

Quantcast