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Best way to photograph/image Mars
Hello Group,
During the last Mars opposition I was able to take some digital photos of Mars by coupling my Canon Powershot non-SLR camera to the eyepiece using a bracket designed for this purpose. For this next opposition I would like to get better photo/images than just single exposure photos. I am looking for advice as to what system/camera I should try. Here are some of my constraints: I have an equatorial tracking mount for the 4" refractor I'll be using. I am anticipating a trip to Phoenix over x-mas so my travel setup will be limited to an alt-az mount (no tracking). It would be nice if I could collect several images of Mars before it drifts out of my field of view while using the alt-az mount on this trip. I have a laptop. Right off I am not interested in buying a digital SLR....although perhaps the cost of a system may approach the cost of a digital SLR which may make it the best option. I was looking at Meade's DSI pro cameras. Would they work for me? Does anyone have any suggesions? I have a feeling that there is no "best" solution......but whatever I come up with here may be of some help to others. I also don't want to sink too much money into this effort and my time is limited.....I just would like to get a couple pictures of Mars that are better than what I acheived last year. Thanks in advance, Scott |
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Best way to photograph/image Mars
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#3
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Best way to photograph/image Mars
wrote in message oups.com... Hello Group, During the last Mars opposition I was able to take some digital photos of Mars by coupling my Canon Powershot non-SLR camera to the eyepiece using a bracket designed for this purpose. For this next opposition I would like to get better photo/images than just single exposure photos. I am looking for advice as to what system/camera I should try. Here are some of my constraints: I have an equatorial tracking mount for the 4" refractor I'll be using. I am anticipating a trip to Phoenix over x-mas so my travel setup will be limited to an alt-az mount (no tracking). It would be nice if I could collect several images of Mars before it drifts out of my field of view while using the alt-az mount on this trip. I have a laptop. Right off I am not interested in buying a digital SLR....although perhaps the cost of a system may approach the cost of a digital SLR which may make it the best option. I was looking at Meade's DSI pro cameras. Would they work for me? Does anyone have any suggesions? I have a feeling that there is no "best" solution......but whatever I come up with here may be of some help to others. I also don't want to sink too much money into this effort and my time is limited.....I just would like to get a couple pictures of Mars that are better than what I acheived last year. Thanks in advance, Scott Hi there, Scott: I'd recommend Celestron's NexImage Solar System Imager, which is meant for planterary photography. You can get it from Amazon.com for $99.95. I bought one a couple of months ago. Installation is easy, and it comes with Registax 4.0 for processing of your images. It's camera is the equivalent of a 5mm eyepiece, which should tell you what magnification to expect. Your field of view will be narrow at that high a magnification (on my 3.5" refractor I get 200x with the camera) so you willl either want to gradually step up to that magnification while keeping your target centered (this is what I currently do), or buy the NexImage Reducer Lens which Celestron claims will increase your FOV at least two times. (I haven't bought this yet, so I can't attest to the accuracy of the claim.) This is also available at Amazon for $23.77. |
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Best way to photograph/image Mars
Scott,
If your Powershot has a video feature then you can shoot avi of Mars and process them in Registax. I've done this with Saturn and the moon and have been very happy with the results, considering the limitations. Dan wrote in message oups.com... Hello Group, which may make it the best option. I was looking at Meade's DSI pro cameras. Would they work for me? Does anyone have any suggesions? I have a feeling that there is no "best" solution......but whatever I come up with here may be of some help to others. |
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Best way to photograph/image Mars
wrote in message
oups.com... Hello Group, I was looking at Meade's DSI pro cameras. Would they work for me? Does anyone have any suggesions? Aside from the suggestions for imagers by John, and John Nichols I would recommend a Baader IR blocking filter since you are using a refractor. -- Rick Evans --------------------------------------------------------------- Lon -71° 04' 35.3" Lat +42° 11' 06.7" --------------------------------------------------------------- Webcam Astroimaging http://mysite.verizon.net/hiltonevan...troimaging.htm --------------------------------------------------------------- ChemPen Chemical Structure Software http://www.chempensoftware.com |
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Best way to photograph/image Mars
"Rick Evans" wrote in message news:mlPXh.2634$YI1.60@trndny04... wrote in message oups.com... Hello Group, I was looking at Meade's DSI pro cameras. Would they work for me? Does anyone have any suggesions? Aside from the suggestions for imagers by John, and John Nichols I would recommend a Baader IR blocking filter since you are using a refractor. -- Thanks for that suggestion, Rick. |
#8
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Best way to photograph/image Mars
I have to agree with Chris. To get good images of planets, you need
lots of magnification, which means you need to track, although all you need there is an equatorial mount, good polar alignment, and a good enough motor on the RA axis. So unless the original poster can get this for his travel gear, forget about imaging Mars. This is especially true because we're entering a roughly one decade period where Mars is going to be VERY small even at opposition. --- Dave Chris L Peterson wrote: On 25 Apr 2007 09:28:18 -0700, wrote: Here are some of my constraints: I have an equatorial tracking mount for the 4" refractor I'll be using. I am anticipating a trip to Phoenix over x-mas so my travel setup will be limited to an alt-az mount (no tracking). It would be nice if I could collect several images of Mars before it drifts out of my field of view while using the alt-az mount on this trip. This is a deal killer, IMO. You will be at high power and using a small sensor. Tracking is mandatory. Bear in mind it doesn't have to be very good tracking- a cheap equatorial mount with a single axis, non-computerized drive is more than adequate. But without tracking, you will be spending all your time trying to get the image on the chip, and then you'll just get a few frames, not enough to use effectively. Figure out a way to take a tracking mount. It helps a lot that you'll be in a part of the country that often has good seeing, but for the best results with video planetary imaging you want hundreds of frames, if not thousands. I have a laptop. Right off I am not interested in buying a digital SLR....although perhaps the cost of a system may approach the cost of a digital SLR which may make it the best option. That's good, because a DSLR is completely the wrong camera for planetary imaging. You want an inexpensive webcam- I've had good luck with the Celestron NexImage. Many Philips and Logitech webcams are also quite good. I was looking at Meade's DSI pro cameras. Would they work for me? For planetary imaging, you would be better off with a simple webcam (which will be a lot cheaper, too). _________________________________________________ Chris L Peterson Cloudbait Observatory http://www.cloudbait.com |
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Best way to photograph/image Mars
On Apr 25, 10:26 pm, David Nakamoto
wrote: I have to agree with Chris. To get good images of planets, you need lots of magnification, which means you need to track, although all you need there is an equatorial mount, good polar alignment, and a good enough motor on the RA axis. So unless the original poster can get this for his travel gear, forget about imaging Mars. This is especially true because we're entering a roughly one decade period where Mars is going to be VERY small even at opposition. I've imaged Mars, Jupiter and Saturn with webcams (Vesta Pro, QuickCam Pro 4000), and found tracking to be the hardest part. The image scale means that even breathing on the camera will make the image jump if your mount isn't very solid. I really can't see it working with an altazimuth mount. My first attempt at planetary imaging (Mars, 2003) was with a 5" Synta refractor on an EQ-3 mount. This was sufficiently character building that I ordered a G-11 the next day. It works well, though it too needs careful polar alignment to keep the target from drifting across the frame. The camera is the least of your worries: if you can't acquire and track Mars, it doesn't matter what you image it with. Laura Halliday VE7LDH "Que les nuages soient notre Grid: CN89mg pied a terre..." ICBM: 49 16.05 N 122 56.92 W - Hospital/Shafte |
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