Easy Focus - Star Focus Filter  - Precise focus on the stars is Easy with it
Easy Focus - Star Focus Filter  - Precise focus on the stars is Easy with it
Easy Focus - Star Focus Filter  - Precise focus on the stars is Easy with it
Easy Focus - Star Focus Filter  - Precise focus on the stars is Easy with it
Easy Focus - Star Focus Filter  - Precise focus on the stars is Easy with it

Easy Focus - Star Focus Filter - Precise focus on the stars is Easy with it

Prix régulier Prix réduit$49.99

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  • En stock
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All orders will be scheduled for shipment in 1 to 3 business days, excluding holidays.


We ship worldwide. 


Currently, we have 4 warehouses.

🇺🇸 US warehouse, for our US users, parcel usually arrives in 1-7 days.

🇪🇺 EU warehouse, for most EU countries, parcel usually arrives in 1-7 days.

🇦🇺 AU warehouse, for our Australia and New Zealand users, parcel usually arrives around 1-7 days.

🇨🇳 CN warehouse, for all countries, parcel arrives in 4-7 or 8-20 days, please check below for details.

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Q 1:  What is the shortest, (widest) focal length this will work with? 14 MM, 20MM, 35MM, 50MM?

A: Yes, this focus filter can work well with all the wide lenses mentioned above, it will perform better on zoom lenses. The longer the focal length, the better the performance.

Q2 : I have a Nikon 24-70 that has an 82mm thread for filters. Does the 82mm have a thread to fit my lens?

A: Yes, the filter has the thread to fit into the lenses.


Star Focus Filter is used to work with cameras to achieve precise focus on the stars,
Focusing a camera lens in the dark is always a difficult thing in astrophotography. Through the Bahtinov Mask on the filter, Star Focus Filter can help the camera get an accurate focus on stars.

Does it work with zoom lens?

Yes, it's ok for zoom lens. The longer the focus length the better the performance.
Below video is tested with indoor red led, Canon 600D, Canon EF-S 18-135mm f/3.5-5.6 @18mm

How to Use Star Focus Filter(video)

Method 1

  1. Mount the Star Focus Filter onto your camera.
  1. Turn on the live view mode, adjust the ISO to the biggest (ISO 1600 or above), and set the shutter speed to 10s or more.
  1. Adjust the frame and make sure the bright star or light source is in the middle of the frame. It is recommended that you look for a bright star of magnitude 1 to focus on.
  1. Magnify the frame and adjust the focusing rings at the same time until three fine spike lines show out in the frame.
  1. Rotate the focusing ring to make the three spikes intersect at one point. This the when the precise focus is achieved.

Method 2

If you can't find a brighter star or the lens aperture is too small, you can take several testing pictures to get the focus.
  1. Mount the Star Focus Filter onto your camera.
  1. Adjust the focus rings to get an infinity focus
  1. Set the high ISO and short exposure (several seconds), and take one testing shot
  1. Check the three spike lines in the frame, if the central spike is closing to the left, screw the focus ring to the right. If the central spike is closing to the right, screw the focus ring to the left.
  1. Take a second testing shot, and repeat step 4 until three spikes intersect at one point. Then a precise focus is achieved.
 Note: Hand holding the filter, then it can work with the lens without the adapter 


  1. It will need to position the bright star in the middle of the frame, choosing the bright star of magnitude 1 or close to the magnitude 1
  1. For the wide lenses, please turn the aperture to the biggest
  1. The filter is not wear-resistant, please store it in a filter case after use. If there is dust or oil, please use an air blower and neutral detergent to remove them
  1. Do not place it in high temperature environment
Recommended Apertures with different focal lengths
Focal Length (MM)
28-600 or longer
Aperture (F)
1.2-5.6 or lower


Compatible lens
Camera Adapter Rings
without adapter ring 20g 
with adapter ring 30.3g


For the Option" star focus filter +all adapters below" , it will come with one 82mm focus filter and 8 adapters- 49mm+52mm+ 55mm +58mm + 62mm + 67mm  +72mm + 77mm.

Note: Star Focus Filter can work with other lenses with the help of camera adapter rings

Customer Reviews

Based on 19 reviews
Radu (Ashburn, US)
Excellent product, great customer support.

I bought the star focus filter. The product is very well made and is very helpful to focus on the stars. It is a must for astrophotography. Customer support is very prompt and helpful. I highly recommend this product and this company. I will be looking at other items they make and I'm sure I'll buy more from them.

Anonymous (Hayward, US)
Easy Focus - Star Focus Filter

The filter worked exactly as I had seen on various YouTube videos. Really helped with stars in the deep sky. If you want to make manual focusing a cinch, then get these filters. They are especially helpful if you’re farsighted and have to wear corrective lenses to see objects up close like on a live view screen if a DSLR. This filter will take the guesswork out of whether you’re seeing a truly sharp object or not. Great product and I would certainly but it again.

Henk Busschers (Zoetermeer, NL)
Great equipment

The Star Focus Filter is really a help whilst focussing on the stars. Not an almost but a yes sharp result 👍

Federico (Paceco, IT)
Very Nice Product

Seems to me Move-Shoot-Move always get the point:
Very easy to use and high quality per price product.
This is one example, easy to use, very sharp focus in 99% of focal leghts!

Andy B Coon Coon (San Jose, US)
Focus easier with this!

So I bought the 100x100mm filter to use on multiple lenses with a filter holder. It worked so well. I was using it to find the E3 Comet and focused on the stars around it and it worked out great! Easy to use but make sure you digital zoom for focus magnifier so you can see it better. Really good buy for my gear.

Niclas Rasmussen (Frederiksberg, DK)

Star Focus Filter - Available for Pre Order

Kevin Jones (Tonypandy, GB)
Star focus filter

This filter works really well. Bright stars show up in live view nicely. Dimmer stars you will need to take a test shot and view the photo. Great addition to my setup.

Lee Zheng (Lowell, US)
Great filter

Works great on my 200mm telephoto lens. Quality on these are nice too. The adopters fit my lenses perfectly.

John Brick (Arundel, GB)
Star focuser

It's a great little device, does help me to focus my camera, excellent bit of kit 👍

Dénes Terebesi (Budapest, HU)
Everything was fine

The product arrived quickly