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Alph
sage
Reged: 11/23/06
Posts: 261
Loc: Melmac
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Quote:
SBIG are making a proprietary 36mm filter wheel for it, and baader, astrodon and custom scientific will be making filters in the crazy 36mm size..
There is nothing crazy about it. It is actually a good thing. The 1.25" filters will cause vignetting with very fast telescopes. QSI have come up with a 31mm filter wheel for the QSI-583 and other models to mitigate vignetting caused by their standard 1.25" filter wheel.
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Gama
Vendor (Gama Electronics)
Reged: 08/23/05
Posts: 967
Loc: I come from the land downUnder
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Vassili,
Dont panic, your not going to miss out on anything.
From the TOS: "vendors/manufacturers are to refrain from commenting on their competitor’s equipment (directly or indirectly). Please restrain your comments to products you manufacture or resell." Any such comments have been deleted from this post. CH
Theo.
Edited by Charlie Hein (11/08/09 08:21 AM)
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blueman
Vendor Blue Sky Accessories
Reged: 07/20/07
Posts: 1435
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AH, 1.25" is 31.75mm! So a 31mm filter is not larger than a 1.25" filter. Not sure what QSI is doing, but it is my understanding that they are just using 1.25" filters in their internal wheel.  IT is due to how close the 1.25" filter is to the CCD chip that allows them to use them without vignetting.
The SBig is an external wheel, this is why they need the extra 4.25mm in diameter when faster focal ratios are used.
Blueman
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14.5" Starmaster with ServoCat and Argo Navis
AT 8" RC
TV NP101 f/5.4 APO Telvue .8 Focal Reducer
WO 80mm f/6 APO Televue .8 focal reducer
SBig ST2000xm with CFW-9 filter wheel
Astrodon Gen2 filters RGBL
Baader HA,O-III, H-Beta, S-II Filters
Losmandy G-11 Gemini Auto-guided
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lawrie
Carpal Tunnel
Reged: 01/31/06
Posts: 1744
Loc: Okanagan Valley
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Your right Blue, the only question I would have is the 23 sec. download time with the QSI cameras.
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Clear Skies
Lawrie
Ultima 8
Atlas EQ-G
ZenithStar 80 FD
DSI Pro - Pro II
Canon 350D
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blueman
Vendor Blue Sky Accessories
Reged: 07/20/07
Posts: 1435
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Hi,
Yes the long download time the requirement to place the focus star on the top of the image for focusing to avoid this long download, it one of the real issues I had with the QSI.
Blueman
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14.5" Starmaster with ServoCat and Argo Navis
AT 8" RC
TV NP101 f/5.4 APO Telvue .8 Focal Reducer
WO 80mm f/6 APO Televue .8 focal reducer
SBig ST2000xm with CFW-9 filter wheel
Astrodon Gen2 filters RGBL
Baader HA,O-III, H-Beta, S-II Filters
Losmandy G-11 Gemini Auto-guided
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Nocturnal
Pooh-Bah
Reged: 09/14/05
Posts: 1033
Loc: CT, USA
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The QSI doesn't have fast download nor sub frames for focusing? That's surprising. My camera takes around 20s to download during imaging but fast download only takes seconds.
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Best,
Sander
C11-HyperStar on Atlas EQ-Q driven by EQMOD
William Optics M110 With FR-III/TRF-2008
DS2090 guide scope
QHY-8, DSI-Pro and DSI cameras
watec 802h video camera with KIWI OSD
Astro stuff: http://www.tungstentech.com
My Astro Photos
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AlexN
scholastic sledgehammer
Reged: 08/09/08
Posts: 979
Loc: Brisbane - Australia
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I have a friend with the QSI583, and the download time is the only thing about it that he does not like... I can't say I blame him either... 23sec is a fair time to wait for a sub.. it doesn't seem like it, but if you were running 100x5min subs, you could have captured another 6 frames in the time your camera has taken to download... The SBIG ST8300 at 7.7sec is very reasonable, and the FLI at 2.2 seconds is incredible... A lot of people will say that using the fast download rate on the FLI will introduce noise, I have it on good authority that it doesn't, a friend of mine with a PL11002M claims to download the full 11mp frame in about 2.5sec for his imaging, he's tested it at the slower rate that takes about 10sec and saw no appreciable difference..
However, I'm quite happy to wait 7sec for an image when the camera is $1500 USD cheaper than the FLI..
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Apogee Ortho-Star LOMO 80/480 APO
WO ZS70ED
HEQ5 Pro + EQMOD
Astrodon NB Filters
Orion SS Pro 2
SBIG ST-8300M on order.
QHY5
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Nocturnal
Pooh-Bah
Reged: 09/14/05
Posts: 1033
Loc: CT, USA
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Ah, things just got a bit more interesting:
http://qhyccd.com/ccdbbs/index.php?topic=1758.new#new
QHY comes out with a color version of the QHY9 priced similar to the QHY8 which would be $1500. If they're not dropping the QHY9 to the same price then that means the color version of the 8300 is really getting dumped out there.
Now where's the popcorn, I'm going to sit back and enjoy the show 
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Best,
Sander
C11-HyperStar on Atlas EQ-Q driven by EQMOD
William Optics M110 With FR-III/TRF-2008
DS2090 guide scope
QHY-8, DSI-Pro and DSI cameras
watec 802h video camera with KIWI OSD
Astro stuff: http://www.tungstentech.com
My Astro Photos
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David Pavlich
Postmaster
Reged: 05/18/05
Posts: 8683
Loc: Mandeville, LA USA 30.22 X 90....
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I've read an awful lot of not so good things about the QHY9 and all of the stuff that's had to be done to make it function. Whether or not Qhy has gotten it straightened out is still up in the air. I don't think SBIG has too much to worry about.
Having said that, I had a Q8 and had no problems with it. We shall see.
David
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Proud Member; PAS NOLA,
"If we knew what we were doing, it wouldn't be called research..."
A. Einstein
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AlexN
scholastic sledgehammer
Reged: 08/09/08
Posts: 979
Loc: Brisbane - Australia
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most if not all of the QHY9 issues have been resolved in a timely manner.. I dare say the new OSC QHY9 will be a good camera... Me, I'll spend the extra coins on a mono camera...
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Apogee Ortho-Star LOMO 80/480 APO
WO ZS70ED
HEQ5 Pro + EQMOD
Astrodon NB Filters
Orion SS Pro 2
SBIG ST-8300M on order.
QHY5
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fetoma
Pooh-Bah
Reged: 09/26/06
Posts: 1098
Loc: NW Ohio
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Quote:
I dare say the new OSC QHY9 will be a good camera
Well, think about that statement now, and tell us what you really and honestly mean by it?
Sorry if that puts you on the spot Alex, but I think alot of people would say the same thing.
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Frank in NW Ohio
Vixen CF VC200L and R200SS
Meade SN-10
Celestron 9.25" SCT
Meade 8" f/6.3 SCT
Intes-Micro M73
Stellarvue 80/480 LOMO Triplet
Takahashi FS-60C
Celestron CGE
QHY8 and SXV-H16
www.jerseydevilastronomy.com
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Gama
Vendor (Gama Electronics)
Reged: 08/23/05
Posts: 967
Loc: I come from the land downUnder
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Quote:
...
Having said that, I had a Q8 and had no problems with it. We shall see.
David
Wrong !.
Go back some time and you got exactly the same talk, like QC issues, not working right, problems here and there.. Which, like any "New" model comming out has issues, the QHY-9 was released with testing only done in China, and not to beta testers in other parts of the world. The 2 main issues with the 9 was users applying 18V instead of 12V, and damaging the shutter board. It had to be redesigned so "User error" was a little more forgiving. The only main issue that occured with the 9 was with "Some" users in hi humidity areas having their front filter show a small fog spot.
As its been told millions of times, but it keeps getting dragged up, it has been rectified and it performs better than ANY of the other cameras in this area now. The 9 now handles up to 99% without an problem.
The 9 has no other issues, and is fully functional and performs the same as any other camera.
Instead of reading 4 month old issues, ask the ones that still are using their cameras.
Theo.
From the TOS: "vendors/manufacturers are to refrain from commenting on their competitor’s equipment (directly or indirectly). Please restrain your comments to products you manufacture or resell." Any such comments have been deleted from this post. CH
Edited by Charlie Hein (11/08/09 08:25 AM)
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David Pavlich
Postmaster
Reged: 05/18/05
Posts: 8683
Loc: Mandeville, LA USA 30.22 X 90....
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Quote:
Quote:
...
Having said that, I had a Q8 and had no problems with it. We shall see.
David
Wrong !.
Go back some time and you got exactly the same talk, like QC issues, not working right, problems here and there.. Which, like any "New" model comming out has issues, the QHY-9 was released with testing only done in China, and not to beta testers in other parts of the world. The 2 main issues with the 9 was users applying 18V instead of 12V, and damaging the shutter board. It had to be redesigned so "User error" was a little more forgiving. The only main issue that occured with the 9 was with "Some" users in hi humidity areas having their front filter show a small fog spot.
As its been told millions of times, but it keeps getting dragged up, it has been rectified and it performs better than ANY of the other cameras in this area now. The 9 now handles up to 99% without an problem.
The 9 has no other issues, and is fully functional and performs the same as any other camera.
Instead of reading 4 month old issues, ask the ones that still are using their cameras.
Theo.
From the TOS: "vendors/manufacturers are to refrain from commenting on their competitor’s equipment (directly or indirectly). Please restrain your comments to products you manufacture or resell." Any such comments have been deleted from this post. CH
Sorry. I was just going by what I've read from the complaintants.
David
Edited by Charlie Hein (11/08/09 08:27 AM)
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AlexN
scholastic sledgehammer
Reged: 08/09/08
Posts: 979
Loc: Brisbane - Australia
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Quote:
Quote:
I dare say the new OSC QHY9 will be a good camera
Well, think about that statement now, and tell us what you really and honestly mean by it?
Sorry if that puts you on the spot Alex, but I think alot of people would say the same thing.
I've had 2 QHY cameras, and think that generally speaking they are great, the images I got out of my QHY8 were fantastic, and it performed exactly as I expected it to. I can only speculate on how the QHY9 OSC will be, but going on my experience with QHY cameras, and the fact that its using the KAF8300CE sensor, I dare say it will be a good option for many people. Its not for me, as my only interest is narrowband imaging, I'd prefer the mono sensor. I was going to get the QHY9, however being that its a fair few hundred dollars cheaper, I ordered a ST-8300M instead.
The issues with some of the QHY cameras have never been QC issues, they are purely an issue with the end users local environmental conditions that QHY had not initially tested the cameras for. 100% relative humidity is not common, and so they had not been rigourously tested for those conditions. As soon as the fogging issue reared its ugly head, a solution was devised and quickly implemented...
I see no reason to say anything other than I think the QHY9 OSC will be a good camera for people looking for an OSC camera for a short focal length scope, where the QHY8 or QHY8 Pro's 7.8um pixels may yield a poor, undersampled resolution.
--------------------
Apogee Ortho-Star LOMO 80/480 APO
WO ZS70ED
HEQ5 Pro + EQMOD
Astrodon NB Filters
Orion SS Pro 2
SBIG ST-8300M on order.
QHY5
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Gama
Vendor (Gama Electronics)
Reged: 08/23/05
Posts: 967
Loc: I come from the land downUnder
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Absolutely correct Alex.
Teething issues will always occur on new cameras.
Lessons learned by the manufacturers helps fix the next models up. But this is also a catch 22, as the new model is again, with new technology and ideas, so your smack bang in the middle of a "New" camera, with again, new possible glitches. I never buy the first release of anything, software/hardware, etc, and said by another smart man on an earlier post (But bought one anyway on this occasion), i wait a little, let them get the kinks out and then buy it. Its just that not every test can be perfomed sometimes, and needs some wierd users adaption or condition to bring out the quirks. The Color vesion will be no different to the current model except just a chip swap basically.
David, like yourself, you own the QHY-8, and know how simple and good the camera is, but to another that reads some old posts of the initial release, would skip right over it.
Theo.
From the TOS: "vendors/manufacturers are to refrain from commenting on their competitor’s equipment (directly or indirectly). Please restrain your comments to products you manufacture or resell." Any such comments have been deleted from this post. CH
Edited by Charlie Hein (11/08/09 08:29 AM)
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