Best Objective Lens Cap

12x50 Professional Binoculars, Includes Phone Holder, 50mm Objective， Vision More Brighter and Bigger Than Xx42, More Concentrated Light,

【50mm large objective lens, larger image, clearer details】 The field of view of 42mm objective lens is 1.41 times (such as 10x42, 12x42, 8x42 binoculars), and 5.16 times of 22mm objective lens (such as ordinary 10x22, 12x22 binoculars). Large objective binoculars make full use of the advantages of the 50mm objective lens to provide larger images and ensure clearer details.
【50mm objective binoculars, super bright, clear field of view】 Collect 41% more light than 42mm objective (such as 10x42, 12x42, 8x42 binoculars), and 416% more light than 22mm objective (such as ordinary, 10x22). Collect more light To provide a brighter view.
【Powerful 12x50 binoculars, only 1.378 pounds for adults】The 12x50mm binoculars weigh only 625 grams and can provide a large field of view of 437 feet/1000 yards. The perfect binoculars, suitable for bird watching, hunting and sports events. Binoculars with adjustable eye cups, suitable for glasses wearers..
【Binocular new mobile phone adapter, enjoy taking pictures】 Quick alignment, compatible with mobile phone case, portable and stable. Suitable for iPhone X, 8P, 8, 7P, 7, 6, 6s, 6P, 5, 5s, Samsung GALAXY S8, S7, S6, S6 Edge, S5, Note, Huawei, LG, HTC, Sony, etc..

✔【40X Magnification】- DM-WJ003 Mode Biological microscope Achromatic Objectives Lens, offering high quality observation without additional chromatic aberration, make image more clear..
✔【Conjugate Distance 185 】- The 185 conjugate distance is the distance between the object plane and the image plane of the objective lens in the microscope system. Working distance (W.D) 0.53mm..
✔【Standard RMS Thread】- Standard RMS thread, 20mm mounting size, please confirm the size of your microscope thread before purchase..
✔【Objective Lens Length 37.8mm】- The Length of the objective lens is 37.8mm, easy to use. It can eliminate unwanted reflections and increase contrast..
✔【Excellent Material】- The outer casing material of the objective lens is made of aluminum alloy and is durable. Customers can use it at ease..

PLEASE NOTE: For optimum fit, carefully measure the OUTSIDE DIAMETER of both your rifle scope?s eyepiece and objective bell. Please note that this measurement is different than the diameter of your objective lens..
HIGH QUALITY MATERIAL: high quality material.The Dustproof Cover is made of high quality material Rubber,that will be durable and lightweight to carry..
FEATURES:Can protect ocular or objective lens from damaging or fracturing.Efficient to prevent dirt or dust to enter, and keep your lens clean when not use..
If you have any questions, please contact us, we will solve it for you within 24 hours, please rest assured to buy!.

GOTICAL Hunting Scope Lens Cover Cap Rifle Rubberized Flip-Up Open Optic Scope Sight Accessories, Dustproof Scope Cover, Compatible with Eyepiece and....
Can protect ocular or objective lens from damaging or fracturing.Efficient to prevent dirt or dust to enter, and keep your lens when not use.v.
Rubberized flip-up rifle scope lens covers that conform tightly around your rifle scope tube, protecting your lenses from dust and abrasion.
:100% high quality material.The Dustproof Cover is made of high quality material Rubber,that will be durable and lightweight to carry.Good quality can....

This beautiful solid brass telescope is mounted on a wooden tripod. This telescope is a beautifully functioning nautical masterpiece, with an objective lens that produces up to 42x magnification..
27" inches Tube length, 60-70 inches extendable height, 25" Inches Ground Diameter, 7.5 kg in weight, Brass Finishing & Tripod is brown in color, Material used to made this telescope and tripod is Brass & wood..
The wooden tripod stand features wooden round legs, each with solid brass fittings and a screw release to let you adjust the height, and the brass chain holds the three wooden legs together so the telescope can maintain its position..
Focusing is accomplished by adjusting the eyepiece ring on the telescope tube. A removable brass cap, connected by a chain, protects the objective lens when not in use..
These nautical telescopes are for decoration purpose. It is a unique item for the people who have unique choice. This is a perfect gift for the nautical explorer, an appropriate piece to spruce up an office for the busy executive..

High-aperture waterproof monocular with 10x magnification and a 50mm objective lens.
Multi-coated BaK-4 glass optics deliver a saturated and contrast image.
large 50mm objective lens gathers much light and ensures great visibility even in twilight.
Waterproof shell is impervious to rain and snow.
nitrogen filling protects the optical elements from fogging.
Long eye relief is convenient for observing in regular glasses or sunglasses.
eyepiece and objective lens protective caps.

Wide-field waterproof monocular with 8x magnification and a 42mm objective lens.
Multi-coated BaK-4 glass optics deliver a saturated and contrast image.
42mm objective lens gathers much light and ensures great visibility even in twilight.
Waterproof shell is impervious to rain and snow.
nitrogen filling protects the optical elements from fogging.
Long eye relief is convenient for observing in regular glasses or sunglasses.
eyepiece and objective lens protective caps.

Rubberized flip-up rifle scope lens covers that conform tightly around your rifle scope tube, protecting your lenses from dust and abrasion.
Spring-loaded flip-up mechanism pops open effortlessly when needed and securely tightly when not in use.
Each set includes two Rubberized Flip-Up Lens Covers. This set include one eyepiece cover with the size 37-43mm/1.5-1.7in and one objective cover with the size 26-31mm/1.0-1.2in.
For optimum fit, carefully measure the OUTSIDE DIAMETER of both your rifle scope’s eyepiece and objective bell. Please note that this measurement is different than the diameter of your objective lens.
Available in a full range of sizes to fit any rifle scope. Eyepiece Cover available in 37-43 mm(1.5-1.7 inch) or 43-49 mm(1.7-1.9 inch diameter). Objective Lens Cover available in 26-31 mm(1.0-1.2 inch), 31-37 mm(1.2-1.4 inch), 37-43 mm(1.5-1.7 inch), 43-49 mm(1.7-1.9 inch), 49-55 mm(1.9-2.1 inch), or 55-62 mm(2.2-2.4 inch) diameter.