Best cheap planetary camera for manual 10 inch dob?

[raw prairie]

Got a 10 inch dob a while ago and I'd like to do some imaging with it. I tried my phone but the manual controls are very limited and I find that the view has significant distortion on the edges, so I'm considering a cheap astro camera. I'll mainly use it for planetary imaging, and maybe some bright DSOs if possible. What's a good recommendation, preferably under $100~150? I'm currently eyeing a second-hand ZWO ASI120mc for around $70, is it a good deal?
Edit: So I've checked my local second-hand market for some other models, and I can find 224mc for $150, 290mc for $130, and everything else is too expensive. To be honest, I don't think I need that good of a camera, as I mainly use my scope in the city, and the seeing condition is not really optimal. Which one is the best at this price?
Also, I've done some more research on astronomy cameras, and learned that I should also get a barlow for optimal performance. However, I've also heard that it's near impossible to manually track with high-magnification barlows, so what do you guys think is the sweet spot? My scope is 10'' f/5 by the way.

[fleet shore]

224mc is my recommendation. It is pricier but the sensor is so, so much better

You can probably find used ones for $150

[willow delta]

A 2x or 3x barlow would work, maybe get 2x then

[raw prairie]

After some research I think the 290mc should be better for me, but a lot of people recommends the 224mc as the best value camera, any reason in particular that the 290mc isn't recommended nearly as much? As for the barlow, is the celestron omni good enough? I don't really want to spend much on it.

[hybrid wharf]

For your budget the 224MC would be best but that doesn’t quite fit in $150, so I’d recommend checking out the Player One Ceres-C

It has the same sensor (IMX224) but it is in guide camera format. This won’t change anything from the normal format of the 224MC because of the small sensor on both cameras

[raw prairie]

I'm ok with buying second hand so 224mc is affordable, and I'd prefer ZWO cameras as they are far more popular than anything else on my local second hand market (pretty much the only thing that shows up when searching for astro cameras). Currently I'm a bit torn between the 224mc and 290mc, they're of similar price with the 290mc being slightly cheaper, which one do you think is better?

[hybrid wharf]

From what I’ve seen for your sensor size and focal ratio, larger pixels would be better, so I’d still go with the 224mc

[stone shadow]

nope. 224mc is so much better, its well worth the price

[raw prairie]

Can you please explain in detail how to calculate the optimal pixel size? From what I've seen, the rule of thumb is that the focal ratio should be 5x the pixel size. So the focal ratio for the 224mc with 3.75 micron pixels should be f/19, and 290mc with 2.9 micron pixels should be f/15. I'm using f/5 with 2x barlow so that makes f/10, shouldn't the pixel size of 290mc be better? Furthermore, planetary imaging works best at a resolution of 0.1~0.25 arcseconds/pixel, 290mc gives 0.24, and 224mc gives 0.3. Is there another reason, for example the sensor quality difference, that makes everybody recommend the 224mc? Thanks!

[raw prairie]

Update: found a qhy462c for $140. I'm assuming this is a really good deal?

[hybrid wharf]

fair points actually, though im not sure how you calculate the optimal pixel size and what it signifies past looking at the difference between your focal ratio and the camera's

[hybrid wharf]

yes thats great

just make sure you also factor in the cost of a UV/IR cut filter

[raw prairie]

Seller said that the original uv/ir cut and ir850 are included

[hybrid wharf]

Oh perfect