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 🎁
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 🎁
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 🎁

Prix régulier Prix réduit$65.99
/

Options
  • Free worldwide shipping above $99

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.

Q3 : Once you have it aligned do you need to remove the filter?

AYes, the filter needs to be removed

 

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 82 reviews
78%
(64)
20%
(16)
0%
(0)
1%
(1)
1%
(1)
A
Aditya Lalla (Mumbai, IN)
Does what it says ...

The mask works great, and is pretty essential with wide angle lenses. I picked up the set with all the various step-up adapters, and tried it with various lenses.

I did occasionally forget to remove the mask for my first shot, but that is a user error, not a problem with the product.

Z
Zef (Brest, FR)
Just good

Arrived with a scratch on the lens... usable but not very happy.

J
John Kelly (Park City, US)
Star Filter

Good quality and works well

C
Christopher Ritter (Guelph, CA)
Should have bought years ago

So much easier to focus. So much wasted time attempting to get focus before buying the filter. With the filter installed, focusing took seconds. Stop wasting your time and buy this filter to get exceptional focus very quickly.

G
Giedrius Kunigiskis (Copenhagen, DK)
Extra step for sharp stars

I got this filter to use it on DSLR camera because it should help me get pin sharp stars. I tried to focus on stars by zooming in but many times i get back home from night photography with blurry stars .. so I hope this solves the issue. So far it works 💪

A
Alejandro Garcia (Pamplona, ES)
AN EXCELLENT EXPERIENCE

MSM delivered quickly, with constant communication and tracking information. Very attractive prices and affordable prices. The quality of the products (in my case, the Pro Kit B, plus the Phone Mount and Star Focus Filter).
Absolutely satisfied with the purchase.
100% recommendable company.
We'll see you again.
Thank you very much for your kindness and professionalism.

O
Oscar Jimenez Bautista Jimenez Bautista (Madrid, ES)
Good tool for focus for the price

It’s a little bit tricky to use with short lens but for the price it’s a must have for your night astrophoto sessions…

R
Robert Powell (Randleman, US)
Great filters

Perfect fit, nice quality and very fine openings so it works on shorter focal length lenses very well. Best way to focus!

M
Martin Schiefer (Schwarzenbek, DE)
Easy and perfect Tool

I´m happy that I have found this Easy Focus - Star Focus Filter.
Very easy to use und helps tremendously to find the right focus for your star shots.

C
Clifford (Dublin, IE)
Star focus filter highly recommended!

I picked this up as I'd been having trouble getting pin sharp stars, particularly with longer lenses - might be my eyesight. Either way, once you find a star to focus on, this worked fantastically well and removed any doubt that I'd focused correctly. I've ruined a few Milk Way shots in the past because of slightly out of focus shots, even though I was certain they were sharp at the time. Less guess work with the manual fine tuning = peace of mind. Highly recommended.