Easy Focus - Star Focus Filter - for Stars and Planetary Photography! - The best gift for you and your loved ones 🎁
- Free worldwide shipping above $39
- En stock
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.
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
Does it work with zoom lens?
How to Choose a Suitable Adapter ?
How to Use Star Focus Filter(video)?
Method 1
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Mount the Star Focus Filter onto your camera.
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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.
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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.
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Magnify the frame and adjust the focusing rings at the same time until three fine spike lines show out in the frame.
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Rotate the focusing ring to make the three spikes intersect at one point. This the when the precise focus is achieved.
Method 2
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Mount the Star Focus Filter onto your camera.
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Adjust the focus rings to get an infinity focus
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Set the high ISO and short exposure (several seconds), and take one testing shot
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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.
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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:
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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
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For the wide lenses, please turn the aperture to the biggest
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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
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Do not place it in high temperature environment
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Recommended Apertures with different focal lengths
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Focal Length (MM)
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10-11
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12
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14
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16
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18
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20
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24
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28-600 or longer
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Aperture (F)
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1.2-2.5
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1.2-2.8
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1.2-3.5
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1.2-4.0
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1.2-4.5
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1.2-5.0
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1.2-5.6
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1.2-5.6 or lower
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Specification
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Compatible lens
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82mm
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Camera Adapter Rings
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49mm、52mm、55mm、58mm、62mm、67mm、72mm、77mm
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Weight（g）
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without adapter ring 20g
with adapter ring 30.3g
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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
Everything perfect
The Dydimium filter is very effective at reducing the impact of light pollution. Coming with an optional range of adaptors for different lens sizes means it fits every lens I have bar one - the ultra-wide angle fast lens that has a bulbous front!
In my area we certainly need something like this with major housing developments within 15Km in all directions. Just why we need to shed so much artificial light upwards by wasting so much energy is beyond my comprehension.
Trying to image something like the Comet C/2023 A3 Tsuchinshan-ATLAS, which is never that high in the sky at latitudes above 50º, was always going to be a challenge in my location but this filter certainly helped when I fitted it to my 70-200mm, f/2.8 Sigma zoom lens. I would recommend that you compensate for the reduction in light passing through by increasing your ISO by up to +1EV if shooting with a full frame camera, maybe +1.5EV for an APC-S sensor.
Have not used yet but delivery process was very efficient and effective.
My only regret with this mask is not getting it sooner. To know that I've nailed focus means I know the nights shots are going to be usable. I can check focus through the night rather than hoping it hasn't drifted or been knocked out.
Star Focus Filter
I always have the problem of focusing at night with my APS-C camera and with my aging vision. I can hardly find that sweet spot of tiny star on my focus. With the aid of Easy Focus - Star Focus Filter I can easily find that spot. Thanks MSM.
While I do not own the MSM rotator due tot the weight of my gear, I have purchase the MSM polar scope laser attachment for my iOptron rotator. It fit my device perfectly and is of high quality. I have also purchased the Bahtinov mask set for my DSLR which is also of very high quality and works well.
Having had issues with getting stars correctly in focus and having bought other bathinov masks that were primarily made for telescopes I decided to give this filter a try. And it works like a charm. One thing though. It’s best not to screw on the filter during focusing. When unscrewing the filter it generally unfocuses the image. I just hold it before the lens and then focus the image. Works like a charm!
Works great. Reasonably fast delivery
I used to struggle getting fine focus on stars but not anymore. The MSM Star Focus Filter is easy to use and nails focus every time, I highly recommend it!!