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Date: 29 Oct 2006 10:08:25
From: RePete
Subject: DLR in C5 prime focus: cannot get fully in-focus images
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When attaching our new Canon 350D SLR to the prime focus
of our little C5, we cannot obtain the sharpness that the
camera viewfinder (SLR) shows us.
Even though using lock-mirror, 2-10 sec. (remote) self-timer
and exposure times of 50th of a second and faster,
images taken are way to blurry (daytime).
Goddammit. What are we doing wrong ?
Reg. Pete J.
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Date: 29 Oct 2006 12:32:37
From: George
Subject: Re: DLR in C5 prime focus: cannot get fully in-focus images
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"RePete" <cay@yahoo.com > wrote in message
news:newscache$934w7j$vcf$1@news.webpartner.dk...
> When attaching our new Canon 350D SLR to the prime focus
> of our little C5, we cannot obtain the sharpness that the
> camera viewfinder (SLR) shows us.
> Even though using lock-mirror, 2-10 sec. (remote) self-timer
> and exposure times of 50th of a second and faster,
> images taken are way to blurry (daytime).
> Goddammit. What are we doing wrong ?
> Reg. Pete J.
You can make a mask out of construction paper the fits over the end of your
c5. The mask would have three holes cut out of them (about 1/2 inch in
diameter). When you place the mask over the end of the scope, look through
the viewfinder, and adjust the focus until the images of the three holes
line up to make one perfectly focused circle. Then take the mask off and
take your picture.
George
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Date: 29 Oct 2006 17:29:25
From: Joe Ringer
Subject: Re: DLR in C5 prime focus: cannot get fully in-focus images
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You wrote:
> When attaching our new Canon 350D SLR to the prime focus
> of our little C5, we cannot obtain the sharpness that the
> camera viewfinder (SLR) shows us.
> Even though using lock-mirror, 2-10 sec. (remote) self-timer
> and exposure times of 50th of a second and faster,
> images taken are way to blurry (daytime).
> Goddammit. What are we doing wrong ?
> Reg. Pete J.
Do you wear glasses, if so focus with them on.
Joe
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Date: 29 Oct 2006 01:24:16
From: Rich
Subject: Re: DLR in C5 prime focus: cannot get fully in-focus images
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RePete wrote:
> When attaching our new Canon 350D SLR to the prime focus
> of our little C5, we cannot obtain the sharpness that the
> camera viewfinder (SLR) shows us.
> Even though using lock-mirror, 2-10 sec. (remote) self-timer
> and exposure times of 50th of a second and faster,
> images taken are way to blurry (daytime).
> Goddammit. What are we doing wrong ?
> Reg. Pete J.
If you consider the shutter slap on those cheap entry-level cameras can
produce noticeable
blur at 1/15th to 1/30th of a second hand held, is it so difficult to
imagine blurring with a 1250mm focal length lens at 1/50th or faster?
Use a high ISO and a shutter speed of 1/1000
on a sunny day and see if the blur goes away. If not, you are doing
something else wrong, like shooting through heat waves.
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Date: 30 Oct 2006 11:01:11
From: nytecam
Subject: Re: DLR in C5 prime focus: cannot get fully in-focus images
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Rich Wrote:
> RePete wrote:-
> When attaching our new Canon 350D SLR to the prime focus
> of our little C5, we cannot obtain the sharpness that the
> camera viewfinder (SLR) shows us.
> Even though using lock-mirror, 2-10 sec. (remote) self-timer
> and exposure times of 50th of a second and faster,
> images taken are way to blurry (daytime).
> Goddammit. What are we doing wrong ?
> Reg. Pete J.-
>
> If you consider the shutter slap on those cheap entry-level cameras
> can
> produce noticeable
> blur at 1/15th to 1/30th of a second hand held, is it so difficult to
> imagine blurring with a 1250mm focal length lens at 1/50th or faster?
> Use a high ISO and a shutter speed of 1/1000
> on a sunny day and see if the blur goes away. If not, you are doing
> something else wrong, like shooting through heat waves.
Rich - What's with the -cheap entry-level cameras- stuff for Canon 350D
- the problem is Internet gurus with a - very small g- !!!
--
nytecam
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