Last updated: 21 February 2006
This page documents the Meade Deep Sky Imager and DSI Pro comments, tips, and photos. Contributions welcome. In order to showcase the DSI you may occasionally see images taken with other telescopes on this page.
Subject: Original DSI compared with DSI2 on M42 Sent: Saturday, February 18, 2006 18:04:54 From: Mfhancock@aol.com (Mfhancock@aol.com) For those interested: An example comparing the original Deep Sky Imager with Deep Sky Imager 2 The two attached color photos are both of M42, taken using a 10" newtonian reflector from my backyard. No filters were used, Both are multiple 4-second exposures digitally stacked. One of them was taken with the original DSI, (M42_DSI1), and the other with the new DSI2 color camera (M42_DSI2). Putting these shots side-by-side shows pretty clearly the benefit of the increased resolution of the DSI2, as well as its larger images, and greater sensitivity (many 13+ mag. stars show up on the DSI2 that are not visible using the DSI1). --Monte Hancock Melbourne, Florida
Subject: RE: Dsi versus Dsi Pro Sent: Sunday, February 12, 2006 12:46:10 From: Ed Williams (firstname.lastname@example.org) Thanks Mike, I am still trying to decide what to do. So, what do you think of the DSI pro 11 color Meade? I know it would cost a little more but I'm thinking it would be easier to use than the filter slide and take less time to take a good picture. Does that make sense? I do want better resolution than the DSI imager but don't think I need the extra headache of the filter slide and 4 passes on the object. Please give me some direction. As always I am continuing to learn from you great site. Thanks, EdMike here: I have no experience with any of the DSI models so can't comment on their use. Sorry.
Subject: first effort with DSI Sent: Thursday, February 9, 2006 08:59:01 From: mark washer (email@example.com) Well i get the impression that networking and cabling errors were the least of my problems! Managed first light and a pretty good picture of 'plato' (IMO) for my first effort with DSI, casually alligned etx125, in the back yard (not a good site), with the next door neighbours 500w security lamp switching on and off as i moved around!!!!! Any hints and tips regarding focussing other than the standard ones in th manuals????? I went for the dsi for deep sky objects - would a focal reducer be of any use to me? I understand the 3.3 is fairly useful at reducing exposure times. Attached is my first picture. Thanks again for your support. RegardsMike here: Certainly a focal reducer can help. Focusing is a challenge; being patient and adjusting in fine steps can help. Using a flexible cable on the knob will help to reduce the vibrations.
Subject: Dsi versus Dsi Pro Sent: Wednesday, February 8, 2006 15:01:32 From: Ed Williams (firstname.lastname@example.org) I just received a Dsi Pro from ScopeTronix today and I think the sent me the wrong thing. I need your advice. I wanted the easiest thing to use and thought and wanted color so I thought I was ordering the Dsi color imager. I was sent the Dsi Pro MONOCHROME CCD. It was to late to call them so looked on the internet to see the difference . It came with a filter holder and of course no filters. I see that the resolution is better but will it take color? Should I send this back for the DSI color imager? Which will be the easiest to use considering also that I have light pollution in my area? Please help. Thanks, EdMike here: It is monochrome; it uses the color filters to capture color data and then combine them into color images. Certainly the DSI Pro captures even better images than the DSI but you do have to image with each of the filters in turn. Using the software is essentially the same. Of course, you also have to purchase the filters, which adds more expense. Also, be certain your computer meets the requirements of the DSI Pro if you decide you want to stick with it.
Thanks so much for your continuing help. Ed
Subject: Meade DSI Pro II Sent: Sunday, February 5, 2006 14:13:31 From: Michelle (email@example.com) I have been reading several correspondence you had regarding astrophotography. You seem to "know your stuff" :). I have a Meade LX 200 8" and have recently purchased the Meade DSI-II Pro series camera. I had it out for the first time last night. The conditions weren't ideal! It was somewhat overcast and I am located in the city! My first shot was tried on Saturn. It was very low on the eastern horizon and turned out looking like an overexposed flying saucer...:). I had my DSI set at an exposure time of 1 second. Was this too long? I love astronomy and have always enjoyed seeing the amazing photos taken of deep space objects. I'd love to learn how to take photos like those I have seen. I am hoping my telescope selection and camera selection will enable me to take excellant pictures. What do you think? Regards, Ron HebertMike here: 1 second is likely too long. I don't have a DSI so can't say for certain but on a bright object like Saturn you will probably want only a small fraction of a second exposure. Also, atmospheric condiditions can affect the image if it "blurs out" the image due to atmospheric motion.
Thanks Mike, I kinda figured my exposure time was too long. I'll try and do it again at a reduced exposure time. Thanks for your help/
Subject: DSI-PRO Sent: Monday, January 30, 2006 15:17:18 From: Badgr91@aol.com (Badgr91@aol.com) I'm considering a DSI-PRO and have the following problem: I want the option of color, only on rare occasions. I have a bag of filters and don't need four more@$100.00(or$199.00!!!) nor do I want to give up the sensitivity of mono. for the odd color shot. I have not seen any info or comments and wonder if any of the contributors to your excellent web site have considered this? I have gained a treasure of info since I found your site . Thank you , Thank you , (and your contributors) A Mullen firstname.lastname@example.org
Subject: Just a note of thanks Sent: Friday, January 6, 2006 21:43:16 From: M. J. The Madjordainain (email@example.com) It's been a while since I last sent anything your way, I thought I might drop you a few images I've taken. They just might be of some encouragement to any other astronomy buffs who have become fledging astrophotographers with a Meade DSI camera. With the new DSI II series coming out your site may pick up some more visitors looking for advice. One of the images I have enclosed is of M82, M82 was one of the DSO first objects I tried to shoot when I first got my original DSI-C working. I sent you that image in May of 2005, I though the difference between that image and the one I have from November might be an interesting comparison. Hopefully it would encourage any new users to keep at it & climb the learning curve. The latest M82 was shot done using an LXD75 SN10 I acquired, but I have also enclosed the last images I took with the Konus 200mm Newtonian I stared using the DSI with. The SN10 made some minor improvements, but most of the improvements are due to a continual climb up the learning curve. It can be done, I still have a lot of 'climbing' to do, but if I can do it......... The Mad One! AKA: Mark Jordan
Subject: Images Sent: Monday, January 2, 2006 17:53:39 From: Robert Zaballa (firstname.lastname@example.org) Here are some images I have taken with the DSI Pro, through an Orion 90 mm f/4.5 refractor using a .5x focal reducer. The Andromeda galaxy The Horsehead and Flame Nebulae.
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