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- The Rokinon 135mm F 2 was Built for Astrophotography
The Andromeda Galaxy using the Rokinon 135mm F 2 0 ED UMC lens To see even more example photos using the Rokinon 135mm lens (or Samyang branded version), go ahead a perform a search on Astrobin or Flickr, with the appropriate filter I think you’ll find that this lens is behind some of the most amazing wide-field astrophotography images online!
- How to clean glasses between lens and frame - Optics4less blog
The Tools You’ll Need Before you get started, you’ll need a few basic items First and foremost, grab a microfiber cleaning cloth This type of cloth is gentle on the lenses and great at picking up dust and oils
- Rokinon 135mm F 2 Review - A Must-Have lens for . . . - galactichunter
The Rokinon (Samyang) 135mm f 2 ED UMC lens is an affordable and fast telephoto lens that truly shines when used for astrophotography
- Effects of Valsalvas manoeuvre on intraocular pressure
We examined the effects of breath holding against a closed glottis (Valsalva's manoeuvre) on intraocular pressure (IOP) in four groups of volunteer subjects: 37 healthy young control subjects, 10 patients with chronic open-angle glaucoma, 11 age-matched control subjects and 8 glaucoma suspects IOP …
- Convex lens - object between lens and `F` - Mammoth Memory
Convex lens – object between lens and `F` An object between the lens and `F` is an object placed between one principal focal length and the convex lens itself
- Valsalva Retinopathy: Causes, Symptoms and Treatment - All About Vision
What is valsalva retinopathy? Valsalva retinopathy is a type of retinopathy that is triggered by increased pressure in the chest or abdomen This heightened pressure can cause the blood vessels in the retina to rupture and bleed (retinal hemorrhage) Valsalva retinopathy is associated with force caused by the Valsalva maneuver The Valsalva maneuver is when a person quickly and forcefully
- Understanding The Connection Between Bandage Contact Lenses . . . - MedShun
Bandage contact lenses are often used to promote healing and protect the eye However, they can sometimes cause blurry vision This article explores the relationship between bandage contact lenses and blurry vision, offering insights and potential solutions
- Achieving collimated gamma-ray emission from direct laser acceleration
In this paper, we investigate the conditions under which direct laser acceleration (DLA) of electrons in a laser-irradiated plasma can produce distinct photon emission profiles, focusing on the mechanisms responsible for single-lobed versus double-lobed angular distributions of emitted \\(γ\\)-rays Through a combination of particle-in-cell simulations, test-electron simulations, and
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