Star Focus Filter - New Release
Star Focus Filter - New Release
Star Focus Filter - New Release
Star Focus Filter - New Release
Star Focus Filter - New Release
Star Focus Filter - New Release

Star Focus Filter - New Release

Prix régulier $49.00 Prix réduit$39.00
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Options
  • Free worldwide shipping above $39
  • En stock
  • Inventaire sur le chemin

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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Pre-order

The first batch will be ready around 21st June, then the orders will be processed for shipping from the CN warehouse.


Move Shoot Move Team
16th June 2022

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.

How to Use Star Focus Filter

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), snd set the shutter speed to be 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 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 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 lens 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、58mm、62mm、67mm、72mm、77mm
Weight(g)
without adapter ring 20g 
with adapter ring 30.3g

 

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

Customer Reviews

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M
Martin Brennan (Redditch, GB)
Star Focus Filter - looks the business!

This looks so much better than those 3d printed options available on "the bay". The finer lines should (hopefully) help to get a more precise focus. Can't wait to test this on a W/A lens - just need some clear nights.