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100mm Milky Way Reveal Focus Filter

Rated 5.00 out of 5 based on 2 customer ratings
(2 customer reviews)

$59.00 $45.00

The 100mm Reveal Filter is good up to about a 90mm lens filter size. If your filter on the front of the lens is under 60mm the 85mm size may work better and be snugger.  If in doubt about the filter size, each lens generally lists the filter size on the front writing of the lens.
How it works: The Goal of the Reveal Focus Filter is to create six spikes (really there are three spikes that pass through the star but if you are counting them one-by-one I don’t want you confused) on bright stars. There is a main large spike then an X of four smaller spikes. The goal is to get the main large spike centered between the X and centered on the star itself. As soon as that is done BOOM you have perfect focus in as little as 2-3 seconds.
How it works: The Goal of the Reveal Focus Filter is to create six spikes (really there are three spikes that pass through the star but if you are counting them one-by-one I don’t want you confused) on bright stars. There is a main large spike then an X of four smaller spikes. The goal is to get the main large spike centered between the X and centered on the star itself. As soon as that is done BOOM you have perfect focus in as little as 2-3 seconds.

15 in stock (can be backordered)

Description

The 100mm Reveal Filter is good up to about a 90mm lens filter size. If your filter on the front of the lens is under 60mm the 85mm size may work better and be snugger.  If in doubt about the filter size, each lens generally lists the filter size on the front writing of the lens.
How it works: The Goal of the Reveal Focus Filter is to create six spikes (really there are three spikes that pass through the star but if you are counting them one-by-one I don’t want you confused) on bright stars. There is a main large spike then an X of four smaller spikes. The goal is to get the main large spike centered between the X and centered on the star itself. As soon as that is done BOOM you have perfect focus in as little as 2-3 seconds.

Additional information

Weight 2 lbs
Dimensions 4 x 4 x 2 in

2 reviews for 100mm Milky Way Reveal Focus Filter

  1. Rated 5 out of 5

    Thomas M

    It took me a bit to figure this out. The diagram on the box seemed simple but at night it was harder than I thought. I used a 24mm lens and with the live view it was hard to see the pattern. I took a few short images and the pattern just popped. Now I mostly use it to check that focus is perfect. It is very quick and easy after you play with it a few times.

  2. Rated 5 out of 5

    Transient Astro

    Fine focus is really important with astrophotography and this filter does the trick! If you don’t know what a Bahtinov mask is look it up, it’s an easy and accurate way to get to perfect focus on stars. Basically when you get down to it, holding this filter in front of your camera for a second or two while looking through a fully zoomed in live view on a bright star a star spike pattern shows. take some quick photos to get it as sharp as possible and your done! As with most photography accurate focus can be what separates an 8 from a 10.

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