Chris White- Overcast Observatory:
Chris White- Overcast Observatory:
Chris White- Overcast Observatory:
My Pegasus wheels are the best of the three IMO
I would like to amend this previous recommendation. Due to issues with centering and repeatability as well as no resolution from Pegasus after over a month I decided to change back to ZWO filter wheel. Of the budget wheels, I thin the ZWO is the best... as much as that hurts to say. 
Are you using a ZWO with your QHY camera? How do you go about connecting it if so?
I use a photon cage in between the camera and fw.
Thanks. That's an interesting device. I've actually been exploring tilt adjustment devices and if the Photon Cage allows connection to a ZWO EFW that seems like the right choice for me. I mainly like the very light weight of the ZWO EFW compared to other options, but if it's also more reliable that's an added benefit.
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Bill Long - Dark Matters Astrophotography:
John Hayes:
I have a Pegasus FW sitting in my shop but I was so unhappy with it that I replaced it with a FLI FW. My concerns were:
1) It does not come out of the box with an acceptable method for mounting the filters. I had to use 3D printed filter holders.
2) It came out of the box with gaps in the housing that let in dust. Pegasus did send me a part to fix this problem but the way that the FW attaches adapters is Mickey Mouse.
3) Filter positioning was not very repeatable. Maybe that’s fixable but I gave up on it before I looked into solving that problem.
4) The housing is not very mechanically rigid. It will flex, even with only moderately light equipment attached to it. It looks to me like it’s made of very thin architectural grade aluminum, which might be fine for backyard use where you can fiddle with it, but I wouldn’t send it to a remote installation.
5) The mechanical design for the motor drive relies on friction that does not include a spring pre-load. Instead it relies on slight compression of a rubber o-ring on a drive wheel to keep everything running. It works but in my view, that’s a cheap way to make it work but that’s not reliable enough for a remote system.
If someone wants a virtually new Pegasus FW set up for 50mm x 50mm square filters, PM me and I’ll give you a good price on it.
John
I, as someone who has in the past said good things (in my backyard) about the Pegasus Wheel -- agree with John. The part I will not agree with him on is FLI wheels. They are very rigid in their construction but are pretty poor in use since they have a silly requirement of using very small set screws to secure the camera -- which I have measured are never orthogonal no matter what you do.
The best wheel I have used, is the one from Moravian. It is made for their cameras, and is extremely rigid (like FLI) and is completely sound and solid in terms of its orthogonality. No muss, no fuss, no BS.
My next deployment of a camera and filter wheel combo is to Chile, I am very likely to send a Moravian unit based on my excellent experience with them remotely in New Mexico.
I second your opinion on the Moravian EFWs. I have one on my TEC140 in New Mexico and the whole camera system is very nice. I have the C3-26000 with enhanced cooling and it just works. The shutter is a nice feature if I have to take more darks or bias frames. I haven't had any issues at all with their filter wheel. It is very solid (and heavy).
I did have a Pegasus Indigo EFW on my Epsilon but I swapped it out with a ZWO EFW before I sent it to New Mexico. I had a lot of issues with their filter position not being centered in the camera opening. My first version would not home due to the pin they use to detect the home position. It wasn't anodized correctly and they had my color it with a black sharpie. Surprise - it didn't work well (sometimes it would find the home position and other times not so much). I sent that one back and the replacement had issues with the centering of the filters.
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Chris White- Overcast Observatory:
Chris White- Overcast Observatory:
Chris White- Overcast Observatory:
My Pegasus wheels are the best of the three IMO
I would like to amend this previous recommendation. Due to issues with centering and repeatability as well as no resolution from Pegasus after over a month I decided to change back to ZWO filter wheel. Of the budget wheels, I thin the ZWO is the best... as much as that hurts to say.
Are you using a ZWO with your QHY camera? How do you go about connecting it if so?
I use a photon cage in between the camera and fw.
Thanks. That's an interesting device. I've actually been exploring tilt adjustment devices and if the Photon Cage allows connection to a ZWO EFW that seems like the right choice for me. I mainly like the very light weight of the ZWO EFW compared to other options, but if it's also more reliable that's an added benefit.
I am using the Photon Cage with a ZWO EFW with my Epsilon 160 and it has no issues bolting to the EFW. I had the same issue as Chris with the Pegasus filter wheel. It wouldn't center properly and their offset function in Unity didn't have enough adjustment to correctly center the filters in the opening. I swapped mine out for the ZWO several days before taking my scope down to New Mexico.
I was disappointed with Pegasus Astro with their EFW and their mount. Their software is lacking and the QC has issues with their EFW.
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Daniel Carter:
disappointed with Pegasus Astro
wow, I thought I had a less probable error and for the most part the units were doing well. It sounds like there's similar issues with nearly everyone on the thread!
I was tempted to try one only because I though a heavier EFW would be more robust and rigid. Turns out that ZWO EFW is really good, especially at the pricing it is.
Similar to John, I've got a near new indigo EFW ready to ship if anyone wants a deal and thinks they can solve the issue. (my thought was that the tensioner on the motor was weak and allowed it to slip over the course of the night)
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Nick Grundy:
Daniel Carter:
disappointed with Pegasus Astro
wow, I thought I had a less probable error and for the most part the units were doing well. It sounds like there's similar issues with nearly everyone on the thread!
I was tempted to try one only because I though a heavier EFW would be more robust and rigid. Turns out that ZWO EFW is really good, especially at the pricing it is.
Similar to John, I've got a near new indigo EFW ready to ship if anyone wants a deal and thinks they can solve the issue. (my thought was that the tensioner on the motor was weak and allowed it to slip over the course of the night)
It's bad code unfortunately. I hope pegasus gets their qc better. When they hit the scene a few years back they were solid. Unity is awful. I've had issues with every pegaus product I've used with the exception of the upbv2 and countless (mostly minor) issues with their software. I was very interested in the nyx but I'm going to avoid pegaus products for the time being and see what happens.
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It's my impression it that Pegasus's core strength is electrical engineering. I think their power boxes are well designed and I've had no issues with mine. Where they're lacking is on the mechanical and software engineering sides of things. I hate the Unity software and I still run the original control programs. They're not great, but better than Unity.
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Alex Ranous:
power boxes are well designed
I have to agree that the powerboxes are great in my experience. I have 3 (2x advanced, 1 ultimate) All of them work great.
I have the rotator, the Scops OAG, and the EFW. I've had some sort of issue with all those.
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