mono v colour asi 1600

[iwols]

just looking at the zwo asi 1600 but cant make my mind up between colour and mono to go on ed80 for dso and c8 for planetary ,i know all the sensitivity/filter debate but would i be missing out much with the colour version where other filters are concerned,or any other comments appreciated as always ,cheers

[riklaunim]

Moon likes infrared imaging. Solar usually also is filtered. DS imagin is also often filered - narrowband. That would preffer a mono camera.

[Lowjiber]

If you plan any solar imaging, get the monochrome version.  An RGB chip only captures on the red channel in Hydrogen-alpha, giving you only one-third the number of pixels and much less detail.

[ollypenrice]

1 hour ago, Lowjiber said:

If you plan any solar imaging, get the monochrome version.  An RGB chip only captures on the red channel in Hydrogen-alpha, giving you only one-third the number of pixels and much less detail.

If the chip's filtered RGGB, as they usually are, it's actually only capturing on a quarter in Ha.

Using a NB filter of any kind as well as an RGGB Bayer filter array is very, very slow and has poorer resolution. If you intend to use NB fiters then do go for the mono.

Olly

[michael.h.f.wilkinson]

I would only consider the mono. Edging towards the ASI178MM, but the ASI1600MM could be great for solar and lunar

[iwols]

is there much difference between the cooled and uncooled versions

[rwg]

For the sort of short exposures you use for lunar/solar/planetary (ie fractions of a second) I could see no difference in noise between cooled dark frames and uncooled dark frames. Once you start getting out to a few seconds exposure and beyond then the cooling makes a big difference to the noise, particularly if you turn the gain up.

cheers,

Robin

PS. missed out the rather critical 'no' in the first sentence when I posted this initially

[iwols]

 

1 hour ago, rwg said:

For the sort of short exposures you use for lunar/solar/planetary (ie fractions of a second) I could see no difference in noise between cooled dark frames and uncooled dark frames. Once you start getting out to a few seconds exposure and beyond then the cooling makes a big difference to the noise, particularly if you turn the gain up.

cheers,

Robin

PS. missed out the rather critical 'no' in the first sentence when I posted this initially

is the 178 any good for dso work thanks

[riklaunim]

There are some ASI178 DS  images available on the web. It works, but keep in mind it small pixels - image scale it will give.