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Re: [APML] Possible Fake or Worse??
Stephen, I am so pleased to see the list rally to your side. I think you
are unduly hard on yourself re the quality - given the "newness" of the
approach and the amount of software post-processing work, you produced
an image that I (a newbie) would be proud to call my own.
Meanwhile, manually guiding 5 minute exposures is one thing but it seems
to me you did 24 of them - that's a lot of manual guiding! As for
focusing, since you brought it up - that must be very challenging with a
digital SLR, I hadn't considered how one would manage to do that but it
looks pretty darn sharp to me.
Anyway, as above, glad you've received the support from the APML you
deserve - I will watch for your next shot in S&T's gallery!
Stuart
Stephen Pitt wrote:
> Hi Stuart. Nice guess: f6 SVEDT. Aspect ratio 3:2. Ratio to 35mm
> 1.6:1. Its easy to manually guide for five minutes at a pop. The
> hard part is focusing through a downsized viewfinder at 1x!
>
> Its O.K., I won't bite the head off the accuser. I'd hate to be in
> his shoes though, not so much facing me as facing his community of peers.
>
> Best regards,
>
> Stephen Pitt: http://www.light-to-dark.com/
>
>
>
> Stuart Heggie wrote:
>
>> Ray, my immediate thoughts are a Canon 10D might be able to do this but:
>>
>> * On the downside, the curious thing is he says he used a 4"
>> achromat and the image size would suggest it has at least a 3
>> degree fov meaning it would have to be pretty fast focal length
>> and then I'm wondering how he got such nice stars with a fast
>> achromat.
>> * On the upside, 15 minutes at the equiv of 800 ASA is almost
>> film-like exposure. (say his rig is f/5 for a guess and I shoot 15
>> min at f2.5 on 400 film so he would need 30 min to match me and
>> he's using a cmos and 15 minutes - not unreasonable).
>> * Further on the upside, the details that come with the note seem to
>> suggest he is more than passing familiar with the tools of the
>> trade and given the "exposure" the Canon D10 got recently in S&T
>> it is a predictable thing to begin seeing images taken with them.
>>
>> All of which boils down to "what do I know" but we're innocent till
>> proven guilty and M31 shots are pretty common and this one is pretty
>> good but not the one I'd rip off if that was my plan.
>>
>> Stuart
>>
>> RayRochelle wrote:
>>
>>> Could this be true??
>>> Mr. Pitt says this is his photo of M31 on a CMOS 10D Digital Camera???
>>> I seem to recognize this photo?????!!!!!!
>>> Any help with this from the group??
>>> Ray Rochelle
>>>
>>> ----- Original Message ----- From: "Stephen Pitt" <lthuedk@pe.net>
>>> To: <digital_astro@yahoogroups.com>
>>> Sent: Monday, September 01, 2003 2:38 PM
>>> Subject: [digital_astro] Testing the Digital Waters
>>>
>>>
>>>
>>>
>>>> This is my first image post using a digital anything,
>>>> http://www.light-to-dark.com/m31_10D.html
>>>>
>>>> and I have found the 10D to be quite a challenge, with a fresh set of
>>>> ideosyncrasies to deal with, like noise, uneven field colour
>>>> temperature (possibly heat from the electronics), and vivid background
>>>> colour pixellation. The processing is at least as challenging as that
>>>> of film and its easy understand the need for dedicated software that
>>>> could make stacking and dark frame subtraction less labor intensive.
>>>>
>>>> Admittedly, I got the 10D hoping for a panacea, a short cut to quick
>>>> imaging, but find such things as noise reduction-like SBGNR-more of a
>>>> necessity than an occasional luxury. But then, I'm not used to
>>>> stacking more than 2 or 3 film images and ending up with smooth
>>>> pictures.
>>>>
>>>> Anyway, the chip is challenging. I can't help but wondering about
>>>> cooling effects on image quality. Perhaps, when winter comes, the
>>>> CMOS will be more image friendly, as ambients of 72-75 deg., such as
>>>> those during the above acquisition seem to be quite noisy.
>>>> All of this is to say, I have come to respect the work done by others
>>>> using their digital cameras. And, I have to ask: Would such programs
>>>> like I.P. make more efficient use of time in processing the images
>>>> than say, P.S. and RegiStar?
>>>>
>>>> Thanking you for a reply,
>>>>
>>>> Stephen: http://www.light-to-dark.com/ iew my Photos go here
>>>>
>>>
>>>
>>> http://www.usefilm.com/browse.php?mode=port&data=17313
>>> Dance like no one's watching
>>> Love like you've never been hurt before
>>> Live like heaven is here on earth
>>> 121.80/39.75
>>> Ray Rochelle
>>>
>>>
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>>>
>>>
>>>
>>
>>
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