Last updated: 13 May 2003

This page documents Casio digital camera models comments, tips, and photos. Search the site for "casio" for other items about the Casio digital cameras. Contributions welcome.

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Subject:	Digital Astrophotography with Casio QV4000ex
Sent:	Tuesday, November 27, 2001 13:13:41
From: (Mr. Lee)
great site.  I just started getting into Digital Astrophotography after
a long absence from SLR astrophotography. I'd been looking for a camera
that would do at least 60 sec exposures.  After months of searching, I
came across the Casio Qv4000ex; I received it two weeks ago, right
before the recent impressive Leonid shower. The camera seems quite
suited for beginning astrophotography, but I stress "beginning" because
of two factors:

(1) an unchangeable ISO 100 setting; (2) and the mysterious 'bulb'
setting, which purportedly will allow you to do more than 60 sec
exposures only if you have the the remote shutter release which no US
vendor (as of this writing) carries.  (I'm still waiting to hear back
from Casio for a definitive answer to this query.)

I have pics from that night at: (You
might need to turn up the brightness of your monitor a little.)

Two other 'critical comments' about the Casio Qv4000ex: 
(1) When it takes a long exposure, for example 30 seconds, the camera
has to do a dark-frame subtraction which ties up the camera for at least
another 40+ sec; and if you're using the highest TIFF resolution, it
takes up to ten seconds to write the 11 MB image onto the CompactFlash
card.  Which in turn means you need at least a 128 MB CompactFlash card;
and (2) Though the camera seems to have very good noise
reduction/dark-frame subtraction subroutines built-in, the digital zoom
(on longer 30+ sec exp) creates some very funky red "hoofmark" artifacts
on the images.  You might have to increase the contrast to notice these

But otherwise, in general, I'm pleased with the astrophoto potential of
this camera. I'm waiting for another clear night (might be a long wait
here in Washington State) and I'm thinking of purchasing a 1.7x
telephoto adapter to be used with the optical 3x built-in zoom for a
better, less noiser zoomed image.   Plus, I need to spend a little more
time aligning the scope... on some pics near the horizon I got some
slight trailing...wish I had an autostar and SBIG autoguider. :)

Hope this helps gives some other future digital Meade amateurs some
perspective on the viability of using a digital camera.



Subject:	Orion nebula
Sent:	Tuesday, January 1, 2002 20:28:24
From: (chan sing)
attach photos was used Casio QV-3500 digital camera,60sec expose,ISO
300,70mm home made refractor+40mm eyepiece,mount on ETX90EC,polar
tracking.6 frame stack.photoshop enhance.
Thanks you.
Best regards
Subject:	ETX & 3500EX
Sent:	Sunday, January 27, 2002 5:21:02
From: (Yoshi-K)
ETX-90EX was combined with QV-3500EX. (Japanese)

Yoshikatsu Kida

Subject:	1st good shot of Jupiter
Sent:	Monday, February 4, 2002 20:57:26
From: (ETX_Astro_Boy)
I finally get a chance to try some shots with my ETX-105 and my Casio
QV-3500ex Digital Camera.

The shot I'm attaching for possible inclusion in your Gallery is a stack
of 3 shots sharpend up a little and cropped.

The shots were taken with the camera mounted afocally using the
Scopetronix Digi-T system and the Casio LU-35 Lens adapter.

The EP was a Celestron 40mm Nexstar Plossl with a Celestron 2x barlow.

The exposures were 1/10 sec @ F4.


Subject:	Jupiter's moons with an etx 105 and Casio qv3500
Sent:	Friday, April 12, 2002 11:06:00
From: (mjcripps)
I thought people may like to see what can be achieved at the first
attempt with an etx 105 and a Casio qv3500 camera combination.   From
left to right there is Europa, Jupiter, Ganymede, and Io. The conditions
were far less than ideal with a stiff wind, a lot of cloud and a sodium
street lamp a couple of yards away.   I gave up using a parfocal support
and hand held the camera to a 9mm Vixen lanthanum. I grabbed the shot
when Jupiter managed to shine through a thinner bit of cloud. The camera
recorded a comprehensive set of data including- 4/11/02 9:56 pm (GMT
+1),F2, 1/2 sec, ISO 500. There has been no enhancement, only cropping.
Of course it may be blind luck and I'll never record anything else!


Mike Cripps
Jupiter moons

Subject:	The eagle has landed!
Sent:	Sunday, April 21, 2002 13:49:38
From: (mjcripps)
After the initial success of grabbing Jupiter's moons with my etx 105
and casio qv 3500 I've been struggling to get some more  shots.   Friday
the 19th gave a crystal clear night here in Norfolk, England and as you
recommend I attacked the crescent Moon.   Focusing proves to be the most
difficult thing to master on such a tiny screen.   I got some nice
shots. The one I attach was handheld to a 9mm Vixen Lanthanum, manual
focus and exposure, iso 500, 1/60s, f2.   I've been addicted to Apollo
since 11 landed on my 10th birthday, so I was keen to find the landing
site.   The original image (reduced here to 90k from 1200k- but with no
enhancement) appears to show features down to about 10km across.  I
think Tranquillity base is across from the 1 of the 19, near to where
the lighter grey starts.

Mike Cripps
MIke here: When using the afocal method, focus the eyepiece to your eye (which should be the same as infinity unless you wear correcting lenses) and focus the camera lens to infinity as well.
Subject:	A link to my Astro Photo Pages
Sent:	Monday, February 10, 2003 13:30:50
From: (Craig M . Bobchin)
I'm sending you a link to a new page of Astro Photos I've been putting

All of these were taken with a CASIO QV-3500EX via eyepiece projection.
Most were taken through either my ETX-105 UHTC, or my Club's 12" LX200.

There are a couple of shots that were taken through the Club's 22" Kuhn

Enjoy. They are not the best, but hey at least they show something.


Start of today's update

Mike here: This past week I received a Casio Exilim EX-S2 digital camera. Although I have a Nikon Coolpix 995 which I use for all my general photography AND astrophotography, I decided I wanted a compact digital camera that was small and easy to carry around but yet would provide nice photos. The 2 mega-pixel Casio Exilim fits the bill perfectly. It is very small, as you can see in this photo:

Casio Exilim

I held the camera lens up to the 25mm eyepiece on my ETX-70AT and took this shot of the Moon:

Casio Exilim

Not too bad considering it was handheld.

I then held the camera up to the 26mm eyepiece on my LXD55 8"SC and took this photograph of Saturn:

Casio Exilim

Considering the minimal magnification used on the LXD55, it is amazing that you can see the Ring in this handheld photograph!

These photographs show that almost any digital camera can be used to take photographs of brighter astronomical objects.

The Exilim comes with a rechargeable battery, a USB/recharging cradle, a built-in 12MB storage but can also accept SecureDigital and MMC memory cards, and a CD-ROM with Windows and Mac OS software. With some newer OSes, no extra software may be needed; with Mac OS X 10.2 I did not need to install anything and iPhoto 2.0 immediately recognized the Exilim when placed into the cradle and imported its photographs. The price for the Exilim starts at $280.

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