A Look at the QHY268M Astronomy Camera

[@hemacp1966]

Came here for the camera review, stayed for the narration!

[@DylanODonnell]

Haha I love this channel

[@sirmeowcelot]

Magnificent camera.

[@regp5]

I have this camera as well as the 2600mm and 26m. They are absolute beasts!

[@derekbaker3279]

Excellent video! 👍👍

[@astrogerard2022]

10 minute subs on the Orion Nebula and it hasn't blown out the core very much. Is that correct?

[@shaunozs1ra92]

Does this camera work with the 36mm filter wheel and do you need the large or medium OAG?

[@derekbaker3279]

Hi Shaun. Whether you need 36mm filters and/or a large OAG really depends on the F-ratio of the telescopes/camera lenses you use, the distance between the OAG and the sensor, the distance between the filters & the sensor, and some other factors. The manufacturers that make cameras with this sensor will be able to answer the question re: the filter wheel, and experienced astrophotographers who have the same or very similar telescope, plus manufacturers of your telescope OR folks familiar with optics who can use the relevant measurements know to do some 'ray tracing' (by hand or with the computer) will be able to give you an answer regarding the minimum filter size, OAG placement, etc.

[@shaunozs1ra92]

@@derekbaker3279 Thanks for your response. I didn't get an answer here so I went asked around at another store and actually purchased from them as they had an answer for me. I can confirm that I purchased the 36mm 7 position filter wheel. I have a little vignetting but I just could not afford to purchase the 50mm Chroma filters. Maybe at a later stage I will get those but for now I am sticking to what I have. I decided not to buy the OAG as I was told that the Celestron OAG that I have will work with the setup. So far I am very happy with this camera.

[@ACEOFSPACE2000]

Nice camera now if only the price was cheaper.

[@cemoguz2786]

It is really bad to be poor and living in 3th world country. 🥲

[@johnadastra1754]

Any astrophotographer buying a camera on this level wants to know the pixel size aforehand so they can determine if they will get good sampling with the focal length of their telescope.

[@darrenthibodeau8381]

Anyone can look up the specs if it's that big of a concern to them. The whole sampling matter is often an overrated concern because there's other factors as well.

[@johnadastra1754]

All depends if you want quality photos or not. 1-2 arcsec/pixel is usually the golden rule. Way over 2 means blocky stars, way under 1 means bloated stars and not getting great focus. People with short FL lenses or refractors generally want smaller pixel size, e.g. less than 4; if you have a long FL SCT you want over 4, or the ability to bin to get much greater than 4. But binning changes your resolution, cutting your MP size to 25% of original just going to 2X2. And you can't bin a color cam. So yes, very important and one of the first things you should check when buying a cam.

[@simonsky2940]

@@johnadastra1754 Not everyone can afford to buy more that one camera, let alone for multiple telescopes. I understand your point, but most people who get into astronomy for the first time will glaze over with numbers, math, which means little to nothing to them. We dont fuss over pixel size when buying a DSLR or Mirrorless camera to do with that 18-55mm kit lens, so to the average consumer, they dont think about that as a point. My experience with advanced users such as yourself, you already figure out what you want so videos like this may not be the video you want to see.

[@johnadastra1754]

@@simonsky2940 Dude, Anybody thinking about buying a $2400 camera is probably not a beginner. Even so, rookie mistakes like wrong sampling can trash someone's expectations and possibly ruin their interest in this hobby/art form. BTW, I am intermediate at best, but I try to help those just starting from making expensive mistakes.

[@simonsky2940]

@@johnadastra1754 Beginners buy $2500 DSLR cameras not know what they have and choose to learn it. I respect what you say and I agree with you about making purchases but to be honest, the cheap cameras are by far and wide the biggest waste of money I have come across and the specs are not relevant because the rest of it is so bad. Ive made plenty of bad choices looking at specs and played the spec war game to know well enough it's more about the performance as a whole and not just numbers.