Everything is fine with this quality item from ZWO. Only gave 4 stars simply because I haven't been able to try it out since purchase as the UK weather remains the culprit. The service from FLO is still flawless though, 5 Star.

First class service as always, not had chance to test this yet.

FLO never disappoint, we've had quite a few items from them and they always keep us up to date with the orders, very polite and helpful, highly recommended 👌😁

For anyone that spends any time observing or imaging the planets in our turbulent UK weather, we know that seeing is seldom good.
I bought this on a whim not expecting much but WOW!! The first time I used it I had not expected much of a visual change but the enhancement to the views is like night and day.
I moved onto imaging the planets with this and I could never be without an ADC anymore. This is an essential item.

very good product

The only way to get sharp images of the planets visual and for planetary imaging.

This little gem works wonders. This year (2018) when planets are all very low it has let me get better images than the previous year.

I must admit that I have struggled to get an approach to setting it that works better than trial and error. Set the ADC to the neutral position (arms together) and get a view of the planet that is greatly over-exposed, this typically blurs so it shows blue and orange edges. Align the ADC arms with the direction of the blur, then open them out until the coloured edges disappear. If they get worse, rotate the ADC 180 degrees and try again.

The effect is quite dramatic, but adjustment is not hyper-critical as the view/image just gets better and better as you get close to the correct position and even a bit under or over corrected will be vastly better than no ADC at all.

When you go to a normally exposed image, you will see it is much sharper than without the ADC. I'm sure it will work well for visual use as well.

Here's a link to an image using the adc: http://www.stubmandrel.co.uk/images/Astronomy/Tidy/2018-05-05-2342_0-2017.png

Another very well made product from ZWO. Yes, there are more expensive versions on the market but for the specific use I require this for this offering from ZWO is perfect. I have not yet managed to get any images through this due to very poor conditions however visually this does greatly make a difference. No instructions with product but they can be found on the internet as can video demonstrations.