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Description
Midwest Optical Systems LP340-27Midwest Optical Systems LP340 27 A R Protective Window M27 Protective Filters Often referred to as a sharp cut filter, Longpass Filters are specifically designed to pass a broad spectrum of longer wavelength light while blocking shorter wavelengths. Longpass Filters are often used in fluorescence applications to block an excitation light source or to pass multiple emission wavelengths, improving signal to noise ratio. Longpass Filters are also
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.0 ★★★★★
Based on 1329 reviews
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Product Reviews
★★★★★ 5
I love this stuff!!
It very lightly blurs imperfections and makes my skin smoother. This is now all I wear with my concealer and powder. No more foundation!! It has improved the look and feel of my skin also. I am so happy with this product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2021
★★★★★ 4
Darker tint in natural lighting
Colorescience Mattifying Perfector Face Primer SPF 20 is a smooth and silky mattifying primer, but it's too dark for me. For some reason the photos on Amazon and the Colorscience website make the primer look lighter than it actually is. See the photos I included. This primer is good for someone with cool-toned light tan skin. Also, this primer is not fungal acne safe. Luckily the Colorescience Sunforgettable Total Protection Face Shield Classic SPF 50 is fungal acne safe and a better color match so I use that instead.
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Reviewed in the United States on May 2, 2024
★★★★★ 5
If you don't want to spend this much don't try it because you will love it!
This is a great product!! I am hooked on it even though it's expensive. It goes on so smooth and leaves your skin with a soft powdery feeling finish.
I decided to buy it for my daughter to try too. She has oily acne prone skin. She's loves it. Also purchased the colorscience cream foundation for her and she wore it for the first time today. She came home from work and said 'Mom I really like this foundation! It's still looks matte and still covers! She was happy because she hasn't had success in finding that a foundation and has always battled shine and oiliness. Very impressive!
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Reviewed in the United States on September 7, 2017
★★★★★ 5
Goes on so beautifully and love the look and feel
AMAZING!!!
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Reviewed in the United States on November 25, 2025
★★★★★ 5
This is the perfect primer to wear under your makeup
This is the perfect primer to wear under your makeup. It has salicylic acid in it that helps for acne prone skin. Its a matte finish with a slight tint so if you just want to wear this without applying foundation for the day you can apply a light finishing powder over top and it works great for a quick fresh look.
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Reviewed in the United States on August 18, 2018
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