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Very Long Working Distance Telecentric Lens Series · Suitable for VGA class sensors · Product lineup includes W.D. 150mm, 220mm, 290mm, 400mm, 800mm · Optical ...

Apr 29, 2013 — Understanding Microscope Objectives · Achromatic objectives–This objective brings red and blue light to a common focus, and is corrected for ...

Field of view

202458 — TLDRIn this AI fuzz video, the host explores IC Light, a new tool for manipulating the illumination of images. The project stands out for ...

fov参数

I bought this for my son who is 2 months old, he loves to fall asleep watching the stars. They have a white star option and a colored star option where the blue, green and red stars flash. Giving 4 stars because I wish the stars moved instead of flashing.

Gaze into the beautiful galaxy, that's shining in your very own room! Star & Moon Projector Light is made of lightweight plastic and features stars, dots, and a crescent moon that illuminate in either a warm-white light mode or a colorful red, green, and blue light mode. This fun, small light serves as a wonderful night light, and will help you drift off to sleep in a most delightful way!

this would have been perfect, except that there is no on/off switch, to turn it off you have to remove the batteries each time you are done using it. returning it today. Who makes a nightlight or projector without a on/off switch?

Please provide a physical street address for the shipment of merchandise orders. PO Box shipping addresses may be provided for gift card only orders. Most orders will ship within 1-2 business days and tracking is provided via email when the order ships. Delivery usually takes an additional 3-4 business days. Keep in mind, some orders may require an additional business day to process, and some locations can require 5-7 business days for delivery.

fov和焦距的关系

2010715 — Changing focal length from shorter to longer reduces DOF and using a smaller (less light) aperture in will increase DOF (providing format is identical).

Focal length

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We want you to be happy with your purchase! If you're not completely satisfied, you can return qualifying items within 90 days.

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The product came broken, or you just had to put the parts together. Mine didn’t come with a off switch. I would happily return

2024221 — A dedicated hex wrench set works far better than the random freebies clattering around your junk drawer.

The Accent track mounted adjustable LED Spotlight is available in 10w and 20w models with a choice of 3000K and 4000K colour temperatures.

Electromagnetic waves are polarized if their electric field vectors are all in a single plane…

Well I bought this with the intent on using it in my Occupational Therapy treatment room to help create a calming room when my Autistic students need a calm down space. Flashes way to fast! A steady light mode or slow spin or fade would be much better!

Optolite™ HSR plastic diffusers have up to 20 times the abrasion and scratch resistance of equivilent acrylics and are highly impact resistant. Our diffusers ...

Dec 5, 2023 — 57 miliardi per l'Agenda sul Clima. La COP28 mobilita oltre 57 miliardi di dollari nei primi quattro giorni, ponendo le basi per una nuova era ...

PHYSIX Photonics Polarizing Cube Beamsplitter · Broadband Polarizing Cube Beamsplitters - 25.4 mm - 450 - 680 nm · BC0034 ; Edmund Optics ...