When I reviewed the Optolong L-Pro last year I expressed my disappointment with the fit of the EOS clip version (although I have no complaints about the performance of the L-Pro filter itself). Thankfully, Optolong has stuck with the design of EOS clip used by the other leading filter manufacturers (eg Astronomik) and this time the fit with the same Canon EOS 800D is faultless. Unlike the L-Pro version, the small 'arms' hold it in place and it does not drop out as soon as the camera is moved. I tried the L-eNhance with my 80ED refractor last week (we have Bortle 6 skies and halogen street lamps) and 2 hours total exposure on the Horsehead Nebula shows a notable improvement over the same exposure period using the L-Pro.

This filter works great for reducing light pollution and moon glow in my images, just waiting for another clear night sky to use it again
It arrived next day, great service as always

Arrived fast next day .as usual the English weather put a hold on testing
I've seen reports that the filter is loose I'm only using a 60d but it clips in very secure
Hope to update my review the sky's clear

Managed to get 2hours of data of the North American Nebula13/14 july and what a difference from the usual light polluted mush I've had to deal with in the past. A great addition to my imaging arsenal.

First of all thank you FirstLightOptics for the speedy delivery! i live in rural Washington state USA and i received in 6 days. Im using this filter with an 80mm f5.4 scope and zwo 533mc pro and the results are amazing even with full moon

Unfortunately the weather has not been kind of late and so I still have to try out in a proper session. I respect many other reviews of this item and Flo's customer service is, as always, second to none.

I was a visual astronomer for years and I decided to try my hand at astrophotography. I live in bortle 5 and was having difficulty photographing emission nebula without the sky being blown out with light pollution. This filter is amazing and stopped me from throwing the towel in. I have captured numerous images which are detailed and clear. Definitely a game changer. Once I gain more experience with my OSC I will try my hand at other disciplines within astrophotography

I am using this with my Unistellar Evscope 2 telescope in a badly light polluted urban area.
The improvement is dramatic with better nebula definition and added colour to background star fields.

Works great for the targets I’ve tried (even under full Moon conditions), but like Martin reviewed below, the clip in version with EOS cameras is NOT a clip in…frankly it’s a “sit in” filter.
I have a 77D and 800D and on both models, the filter simply “sits” in, it has no capability to “clip” as described. This is a major problem, because as the mount rotates, the filter then falls out of place, and in my case, actually cropped the top left/bottom right of my images!
Only solution I have is to sellotape it in…not what I’d expect for a £200 filter. As the other sizes aren’t compatible with my setup, I guess I’ll have to live with it. Didn’t get this problem with a svbony CLS filter.

You can already see the target at a single image. Great filter for bortle 4-5 areas.