Easy Focus - Star Focus Filter  - for Stars and Planetary Photography!  - The best gift for you and your loved ones 🎁
Easy Focus - Star Focus Filter  - for Stars and Planetary Photography!  - The best gift for you and your loved ones 🎁
Easy Focus - Star Focus Filter  - for Stars and Planetary Photography!  - The best gift for you and your loved ones 🎁
Easy Focus - Star Focus Filter  - for Stars and Planetary Photography!  - The best gift for you and your loved ones 🎁
Easy Focus - Star Focus Filter  - for Stars and Planetary Photography!  - The best gift for you and your loved ones 🎁

Easy Focus - Star Focus Filter - for Stars and Planetary Photography! - The best gift for you and your loved ones 🎁

Regular price Sale price$59.99
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Options
  • Free worldwide shipping above $39
  • In stock, ready to ship
  • Inventory on the way

HANDLE TIME

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

COUNTRIES

We ship worldwide. 

WAREHOUSES

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.

For more information, click here to check more.

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FAQ

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.

Introduction

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 Choose a Suitable Adapter ?

 

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 

 Tips:

  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)
10-11
12
14
16
18
20
24
28-600 or longer
Aperture (F)
1.2-2.5
1.2-2.8
1.2-3.5
1.2-4.0
1.2-4.5
1.2-5.0
1.2-5.6
1.2-5.6 or lower

Specification

Compatible lens
82mm
Camera Adapter Rings
49mm、52mm、55mm、58mm、62mm、67mm、72mm、77mm
Weight(g)
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 50 reviews
68%
(34)
26%
(13)
0%
(0)
2%
(1)
4%
(2)
S
Stephen Firman (London, GB)
Star focus filter

This has made my life a lot easier getting pin point focus on the stars with my DSLR. Would highly recommend

P
Pablo Yanez (Williamsburg, US)
I love most MSM products, but not this one

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.

M
Mark B Evans

Great product.easy to use. I love it.

M
Melanie Bush (Indian Rocks Beach, US)
Never received my order

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

I
Igor Daskalovski (Ljubljana, SI)
Easy Focus - Star Focus Fitler: A must-have for crisp images!

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.

A
Andrea de Polo Saibanti (Legnago, IT)
All great but shipping a bit slow

Great product and good support, shipping time a bit slow...

G
Georgios Asteros Asteros (Athens, GR)
X Marks the Focus

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.

r
roundtw
Good but not with wide angle lens

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.

D
Doug Liedblad (Newbury Park, US)
Late, late, late

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.

C
Customer (Burney, US)
Maybe great?

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.