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Old 01-10-2021, 10:47 AM
RobC (Rob)
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Location: Woodford , Queensland , Australia
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Help wanted to purchase an ASP-C OSC

I am having some difficulty selecting the camera to purchase.

Currently looking at the following APS-C camera models.

1. QHY 168C
2. QHY 247C
3. QHY 268C
4. ASI 2600MC

Whatever camera I purchase I don't want to experience amp glow or dewing problems. From the published specifications I am tending towards the QHY 168C. My selection is based on pixel size , QE , read noise and full well. I am concerned I may be missing some thing as this is the cheapest camera in the above list and I haven't been able to find any independent reviews of the QHY 168C and QHY 247C to back up my selection.

Any comments are welcome and especially so if you already image with one of the above cameras.

Cheers Rob
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  #2  
Old 01-10-2021, 01:02 PM
Startrek (Martin)
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Quote:
Originally Posted by RobC View Post
I am having some difficulty selecting the camera to purchase.

Currently looking at the following APS-C camera models.

1. QHY 168C
2. QHY 247C
3. QHY 268C
4. ASI 2600MC

Whatever camera I purchase I don't want to experience amp glow or dewing problems. From the published specifications I am tending towards the QHY 168C. My selection is based on pixel size , QE , read noise and full well. I am concerned I may be missing some thing as this is the cheapest camera in the above list and I haven't been able to find any independent reviews of the QHY 168C and QHY 247C to back up my selection.

Any comments are welcome and especially so if you already image with one of the above cameras.

Cheers Rob
Rob,
Iíve imaged with the ZWOASI2600MC for over a year now and can thoroughly recommend this camera for DSO imaging

ZWOASI2600MC Specs

APS-C crop sensor
Sony back illuminated IMX571 CMOS sensor
26 Mega Pixel
Dynamic range 14 stops
Resolution 6248 x 4176 pixels
Pixel pitch 3.76uM
Sensor size 23.5mm x 15.7mm
Diagonal 28.3mm
Full well 50,000e
Read Noise 1.0e to 3.3e
Bayer Pattern RGGB
ADC 16bit
Weight 700gm
Diameter 90mm
Regulated 2 stage TEC cooling to -35C below ambient ( I run mine at -10C below zero )
QE + 80%
Dark current - negligible


NB: Plenty of reviews for this camera on CN and YouTube

Cheers
Martin
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Old 01-10-2021, 04:36 PM
Startrek (Martin)
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Most importantly I failed to mention that the 2600MC has a dew heater which I leave on as default



Never has dew issues at all



In addition, the protective window in front of the sensor is an IR/Cut filter thus eliminating the need to buy or use an additional filter especially imaging with both Wide band or Narrowband


In regard to NB filters I have both the ZWO Duoband and Optolong L Extreme filters which are excellent. The L Extreme with its tighter band passes in Ha (7nm ) and Oiii (7nm ) is absolutely incredible on Emission nebula.


Cheers
Martin
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Old 01-10-2021, 05:11 PM
AdamJL
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Hi Rob

If you don't want amp glow, either the QHY268 or the ASI2600 will be your best friend.
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  #5  
Old 03-10-2021, 08:50 AM
RobC (Rob)
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Thanks Adam and Martin for your advice and suggestions.

That reinforces what I was initially intending to purchase. Just trying to save some cash if it wasn't necessary.

Cheers


Rob
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  #6  
Old 03-10-2021, 10:43 AM
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xa-coupe (Jeff)
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I can't comment on the QHY offerings but like Martin I have had a 2600MC for a little while now and cannot recommend it enough.
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