LRGB-Filter

I give only four stars becouse some filters of the 36mm LRGBSHO filterset were contaminated with a kind of glue. The L filter was worst contaminated.
I managed to clean the filters up and meanwhile they are working in Toupteks 7 x 36 mm electronic filter wheel together with the Touptek 2600 mono 2 Gen.
As I am an experienced person regarding filter use and astrofotografy it was okay for me. But it is of course not okay regarding QC control and QM. Touptek needs to do their homework on filter Quality.

I would have given these a 5* review, however despite the description on the product page it was not entirely obvious which way round to install these in the EFW as both sides appeared to have the same tint and reflection, they really need some form of labelling to resolve this unambiguously

I use the filters in combination with a ToupTek IMX571 Mono in a ToupTek 7x36mm filter wheel. For the telescope, I used a Takahashi FS-60CB with a 0.72x reducer, resulting in an f/4.3 setup.

I tested the filters on the Pleiades and am extremely satisfied—I would definitely buy them again.

It would just be helpful to have a clear marking indicating which side should face the camera or the telescope. Unfortunately, this is not really obvious, even when looking at the reflection of the filters.

I have now used these filters for 3 DSO targets and all have good results.
For my use these filters are very good and work well with my ATR533M camera.

Due to all the clouds I was able to use the filters only once yet. Very good filters!