This has made my life a lot easier getting pin point focus on the stars with my DSLR. Would highly recommend
In my tests this worked OK with wide angle lenses, but not so with telephotos.
When I tried using this on my 70-200mm, 70-300 and other telephoto lenses, it did not work properly. As with other Batinov masks I have used I could get sharp focus on stars focus with the filter (i.e. I would get the expected "*" when the lens was focused, but as soon as I (carefully) removed the filter focus would shift significantly on all of my telephoto lenses. I assume that this filter, unlike most Batinov masks which are cut into an opaque filter and has light transmitted through the air gaps, rather than a translucent element that seems to shift focus. Surprised no one else has reported this issue here, I had it with 3 lenses I tested with.
I hope this isn’t a scam. I ordered beginning of Dec and no package yet. This was a Christmas gift for my daughter I am very disappointed. I track it and it is sitting somewhere in California for the last three weeks
The Easy Focus really makes a difference and using it is very easy! It came with a set of different filter sizes, so it fits on many lenses. The adapters go up to 82 mm, I'd wish they made them up to 95mm, so that I could use it on the telephoto lenses as well.
Great product and good support, shipping time a bit slow...
I was spoiled from the Olympus Starry AF and when I got an older DSLR for astrophotography, it was a pain trying (and usually) failing to get a sharp focus. Using the MSM and being very satisfied with it, I decided to try the Easy Focus - Star Focus Filter. What a blast. I can focus in seconds and the the star are pin-sharp. Well and highly recommended especially at the price.
This filter is a great help to get focused stars with normal to long lenses. With wide lenses, the pattern is very difficult to see, and I personally did not succeed perfect focus. I believe another artisan makes a filter with bahtinov mask specifically for ultra wide to wide lens.
As pointed out in another review, a magnetic filter would be more convenient. But the possibility to get all the adapter rings is very nice.
The order took 21 days to arrive after being assured of 10 days max. Too late for my trip to Alaska and I had to buy from Amazon at more $$. A promised refund has yet to appear.
I bought the Star Focus Filter due to other reviews being favorable. I've used it once and I believe it helps. Move-Shoot-Move could use more instruction videos or information on this filter. Do you remove the filter after focusing? I guess so.
This may be a great product, but MSM needs to include further instructions for use. My filter came with zero instructions.