Utilizing an ingenious spring-folded assembly design to hold them securely in place, these 50mm White-Light Universal Lens Solar Filters (2-pack) from Daystar Filters allow you to safely view or photograph the sun and solar eclipses. They are safe for solar viewing with binoculars spotting scopes, or multiple optics and lenses without having to move the filter. Made from 12312-2 ISO-certified SOLARITE film, each filter blocks more than 99.999% of intense light, plus 100% of harmful IR and UV radiation to reveal sunspots and super granules on the solar surface. Made to fit on the front of camera lenses, telescopes, spotting scopes, binoculars, or other optics and imaging devices, they accommodate housings, sunshades, and dew shields with an outside diameter from 50-69mm (1.96-2.71"). The filter has a clear aperture of 50mm, so vignetting may occur when used on lenses and optics that approach the maximum recommended diameter in the size range.
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Key Features
- Safe Solar Viewing and Photography
- For Lenses, Telescopes, and Binoculars
- 12312-2 ISO-Certified SOLARLITE Film
- Fits Outside Diameters from 50-69mm
Utilizing an ingenious spring-folded assembly design to hold them securely in place, these 50mm White-Light Universal Lens Solar Filters (2-pack) from Daystar Filters allow you to safely view or photograph the sun and solar eclipses. They are safe for solar viewing with binoculars spotting scopes, or multiple optics and lenses without having to move the filter. Made from 12312-2 ISO-certified SOLARITE film, each filter blocks more than 99.999% of intense light, plus 100% of harmful IR and UV radiation to reveal sunspots and super granules on the solar surface. Made to fit on the front of camera lenses, telescopes, spotting scopes, binoculars, or other optics and imaging devices, they accommodate housings, sunshades, and dew shields with an outside diameter from 50-69mm (1.96-2.71"). The filter has a clear aperture of 50mm, so vignetting may occur when used on lenses and optics that approach the maximum recommended diameter in the size range.
More DetailsIn Stock
$16.99
ISO 12312-2 Compliant
Warning: Viewing the Sun without proper protection can cause permanent eye damage, blindness, and equipment damage. Always use an approved ISO 12312-2 certified solar filter when observing the Sun through optics or cameras. Never use photographic neutral density filters for direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder.
Warning: Viewing the Sun without proper protection can cause permanent eye damage, blindness, and equipment damage. Always use an approved ISO 12312-2 certified solar filter when observing the Sun through optics or cameras. Never use photographic neutral density filters for direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder.
DayStar Filters ULF50-2 Overview
UPC: 724696425861
DayStar Filters ULF50-2 Reviews
Nice Filters
By Greg
Rated 5 out of 5
Date: 2024-06-20
These worked great and fit nicely on my binoculars. When's the next eclipse?
Perfect for Eclipse viewing
By Debbie
Rated 5 out of 5
Date: 2024-04-21
Ordered last minute after deciding to take my camera for the Eclipse in an area of totality. This worked perfect on my 18–55mm lens and with a little adjustment, worked with my 70-300mm. I’m a total amateur and my results made me feel like a pro.
See any errors on this page?
Will this fit my Nikon Monarch M5 8x42 binocular?
Will this fit my Nikon Monarch M5 8x42 binocular?
The DayStar Filters 50mm White-Light Universal Lens Solar Filter (2-Pack, 50-69mm OD)
BH #DAULF502 • MFR #ULF50-2 will fit an outside diameter from 50-69mm (1.96-2.71"). which may be too large for your Nikon Monarch M5 8x42 binocular.
Date published: 2024-01-07
question
Seems pretty straight forward. I assume the filter would fit either my 18-55 (kit lens) or 55-200. Is the filter pretty easy to take on and off? (so I can take pictures without the filter when the moon is completely covering the sun)
The key here is to measure the O.D. of your lens and buy the appropriate size to fit that lens. My lens is 2.6 O.D. at full zoom and the filter fits perfectly, easy on and easy off but not too loose. I folded the lens flaps and ran a strip of Scotch Tape around the base to hold it all together and it doesn't fall off but slips off easily when pulled. Again, the O.D. of the lens and the correct size filter is critical.
Date published: 2018-08-27
question
Will this fit my nikkor 70-300?
I purchased two for my 15x50 binoculars, and, after assembling one, found it wouldn't fit. The objective lenses of the binoculars are each 68.5mm OD. Had to return for a refund. As to the 70-300, of which I do not own one, I doubt strongly that it will fit. The next size up might fit, but measure your OD and compare it to the specs. The filter size is only a guideline, and has very little to do with the physical size of the lens body.
Date published: 2018-08-27
question
What is the neutral density or f/stop number of the DayStar filter?
I do not know - nothing in the documentation or on the product answers this question. I agree with David R's estimate (1 divided by 2, divided by 2, etc. 15 times (f-stops) gives you 0.0000152. Divide that by 1.5 f-stops yields 0.0000101 (1/1000 of 1%) for 16.5 f-stops. (=1/(2^16.5) = 0.0000108 in Excel).
Date published: 2018-08-27