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Best Multi focal

Headband Magnifier, Professional Double Lens Head-Mounted Loupe Jewelry Magnifier, Reading Visor Opitcal Glass Binocular Magnifier with Lens Magnification-1.5X 2X 2.5X 3.5X for Repair, Crafts

  • MEET DIFFERENT MAGNIFYING: With 4 Replaceable/interconvertible magnification lens, 1.5x at 15" Focal Length/2.0x at 10" Focal Length/2.5x at 7" Focal Length/3.5x at 6" Focal Length..
  • SPONGE DESIGN: Soft and Light, breathable sponge inside will make you will feel comfortable when operating, even if you work and wear it for a long time, it will not put pressure on your head..
  • ADJUSTABLE HEADBAND: Hands free handband strap improves comfort when wearing, two knobs on both sides can adjust the height of the magnifier to meet your request view angle. easily fit your head without discomfort..
  • WIDELY APPLICATION: Hands-free multi-power combined lens magnifications meet your variety requirement use: jewelry making, reading, painting, observing, watch-making, repairing, beading, close work, needlework, artwork, and other hobbies/crafts. A very important visual tool for persons involved in the watch, delicate instrumentation and small work..
  • ADJUSTABLE VISOR: Visor can be tilted up and down as needed, and moved out of the way when no longer required. Can be worn over prescription glasses or safety goggles..
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Astromania Stereo Bino Viewer - Telescope Binocular Allows You to Adapt Two eyepieces to Your Telescope and View with Both Eyes simultaneously

  • Consisting of 7 elements, the Hyperion optical design delivers outstanding sharpness and color correction over its field.
  • Continuously variable focal length, with click-stops at 8, 12, 16, 20, 24 mm. Remains parfocal across zoom range. Click-stops enable precise focal length matching for bino-viewer use.
  • The field of view is 68 degrees at the 8 mm setting, and 50 degrees at 24 mm.
  • Excellent viewing comfort. The eye relief of 12-15 mm, large eye lens, and freedom from kidney beaning and blackouts result in a high level of comfort and ease-of-viewing, at all focal lengths.
  • Baader Planetarium has gone to great lengths to give the Hyperion Zoom the most advanced multicoatings ever used on amateur telescope eyepieces. The Hyperion Phantom Group multi-coatings truly rival the best in the world - including the famous Zeiss Abbe Orthoscopic.
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Orion 08471 High-Power 2 Inch 2x 4-Element Barlow Lens (Black)

  • This big, 4-Element 2x Barlow will give your 2 inch telescope eyepieces a power-doubling magnification boost.
  • Sophisticated fully multi-coated, 4-element lens design renders exquisite images without introducing additional chromatic aberration for crisp, color-correct views.
  • Enjoy twice the power while maintaining comfortable eye relief and edge sharpness of longer focal length 2 inch eyepieces.
  • Included step-down adapter allows use with both 2 inch and 1.25 inch size eyepieces.
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SVBONY SV135 Telescope Eyepiece Zoom 7 to 21mm 1.25 Inch Zoom Eyepiece Fully Multi Coated 6 Element 4 Group Zoom Lens Telescope Accessory for Astronomic Telescopes

  • SV135 7 mm to 21mm adjustable focal length.
  • SV135 7-21mm zoom eyepiece equivalent to multiple eyepieces.
  • obtain higher magnification with short focal....
  • designed primarily for viewing landscapes and astronomical observations of....
  • The true fully multi-coated Premium eyepiece with superior edge and center sharpness than normal PLOSSL eyepieces.
  • Equipped with a precision-made standard 1.25-inch lens barrel that is compatible with any telescope that accepts 1.25-inch....
  • 40 degree - 57 degree wide angle field of view.
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SWFA 16x42 SS 30mm Riflescope

  • The Diamondback Tactical First Focal Plane 4-16x44 stands at the intersection of precision and value, delivering an impressive array of features and....
  • Extra-low dispersion glass and fully multi-coated lenses transmit a crisp, bright sight picture. The first focal plane, glass-etched reticle keep....
  • The precision-glide erector system uses premium components in the zoom lens to ensure smooth magnification changes under the harshest conditions..
  • Exposed tactical turrets and a side parallax knob give shooters the tools needed for long distance precision shooting. The fast focus eyepiece allows....
  • The single piece 30mm tube is shockproof, ruggedly built to withstand recoil and impacts. Strong o-ring seals and nitrogen purging waterproof and....
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Kenko 62528 - Teleplus 1.4X HD Pro DGX Teleconverter for Nikon - Black, 4.0 cm*3.0 cm*3.0 cm

  • Increases focal length from same camera position by 1.4x.
  • Professional quality optics with multi-layer anti-reflection coatings.
  • Compatible with proprietary lenses from Nikon.
  • Tele converter is designed to be used with tele and super tele lenses. It is not recommended to use it with lenses with focal length from 50 mm and shorter. It may affect the quality of the image.
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YONGNUO YN560-TX PRO C Flash Transmitter Control Trigger 1/8000s HSS TTL for YN862C YN968C YN200 YN685C YN622CII for Canon

  • YN560-TX PRO can control, trigger YN200/YN862 series and the models which have been upgraded to the latest firmware such as YN622C(N) II/YN685/YN968C/YN968N(II) (in 560RX mode) to realize ETTL/M/Multi flash, high speed sync, focal length control functions..
  • Compatible with radio flash and flash trigger models such as YONGNUO YN560III/IV/YN660/YN720/YN860Li/RF603 series /RF605 series directly, realize M/Multi flash functions..
  • 16 channels, up to 10,000 customizable photographer ID, A/B/C/D/E 5 flash groups.
  • Fully supports ETTL/M/Multi/GR flash mode. Supports front-curtain sync, second curtain sync(M mode),high speed sync.
  • Supports ETTL ratio, flash exposure compensation, flash exposure Lock, flash exposure bracketing, modeling flash functions. 2.4G radio Maximum communication distance is over 100m..
  • Supports remote control focal settings of slave unit flash (only for YONGNUO compatible flashes).
  • Firmware can be upgraded via USB(Micro-USB).
  • High resolution dot-matrix LCD, backlight for keys.
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Metal Rectangular Progressive No Line Reading Glasses Tri-Focal Reader Outdoor Sunglasses (Gunmetal, 2.00)

  • Progressive Tri-Focal Reading Glasses (No visible line) - No more needing to carry multiple pair of glasses.
  • Lens are divided into 3 sections, 1/3 at the bottom is your selected power, 1/3 in the middle is slightly less than selected power, 1/3 on top is half of your selected power..
  • Package contains 1 Tri-focal Progressive Reading SunGlasses and 1 microfiber cleaning storage pouch. - 52mm Lens Width, 33mm Lens Height, 140mm Frame Width (Small To Medium Head Fitment) - Adjustable English nose piece..
  • This Multi focus Reading Glasses include 3 strengths within 1 pair of reading glasses, so you can read, view your computer monitor and converse with others, all without having to take off your sunglasses..
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SVBONY SV135 Telescope Eyepiece Zoom 7 to 21mm 1.25 Inch Zoom Eyepiece Fully Multi Coated 6 Element 4 Group Zoom Lens Telescope Accessory for Astronomic Telescopes

  • SV135 7 mm to 21mm adjustable focal length.
  • SV135 7-21mm zoom eyepiece equivalent to multiple eyepieces.
  • obtain higher magnification with short focal length.
  • It could bring you a better observation experience in a comfortable situation with high-contrast imaging.
  • designed primarily for viewing landscapes and astronomical observations of lunar surfaces.
  • The true fully multi-coated Premium eyepiece with superior edge and center sharpness than normal PLOSSL eyepieces.
  • 6-Element 4-Group premium optical design for superior optical performance.
  • Equipped with a precision-made standard 1.25-inch lens barrel that is compatible with any telescope that accepts 1.25-inch eyepieces.
  • Rubber eye guard for comfortable viewing and blocking stray light.
  • 40 degree - 57 degree wide angle field of view.
  • high brightness observation is very comfortable.
  • you will obtain more details that you have never seen before.
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Dibetoy Smart Sketcher Projector Toys, Drawing Projector for Kids,Kids Drawing Projector for 3 4 5 Years,Trace and Draw Projector for Kids,Projector Flashlights for Toddlers.(Red)

  • 1. 【Interesting drawing projection toys】Put the slides into the card slot and adjust the focal length to get a clear picture. Give play to your child's artistic talents..
  • 2.【Multi-purpose projection toy】In fact, it is also a story flashlight, it has 6 themes, 48 images, cartoon animals, Sea World, dinosaur park, animal world, orchard, insects, so that you and your children spend a warm bedtime.
  • 3. 【Cute and colorful appearance】This is a bear appearance toy, many children like, pink, blue, green, purple can choose, small size and easy to carry.
  • 4. 【Multi-function simple operation】Pull down the head switch, open its mouth upward, and then turn the lens down, the height and Angle can be adjusted, press the projection button, adjust the focal length, get a clear image, need two AA batteries, (batteries are not included).
  • 5. 【Small size can be hung】Light weight, with a lanyard, convenient for children to carry, can be outdoor, school with classmates to share and learn, is a birthday, children's day, Christmas, reward children's perfect gift.
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Vortex Optics Diamondback Tactical 6-24x50 First Focal Plane Riflescopes - EBR-2C MRAD Tactical Reticle Black DBK-10029

  • The Diamondback Tactical First Focal Plane 6-24x50 stands at the intersection of precision and value, delivering an impressive array of features and....
  • Extra-low dispersion glass and fully multi-coated lenses transmit a crisp, bright sight picture. The first focal plane, glass-etched reticle keep....
  • The precision-glide erector system uses premium components in the zoom lens to ensure smooth magnification changes under the harshest conditions..
  • Exposed tactical turrets and a side parallax knob give shooters the tools needed for long distance precision shooting. The fast focus eyepiece allows....
  • The single piece 30mm tube is shockproof, ruggedly built to withstand recoil and impacts. Strong o-ring seals and nitrogen purging waterproof and....
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Vortex Optics Diamondback Tactical 4-16x44 First Focal Plane Riflescopes - EBR-2C (MRAD) Tactical Reticle

  • The Diamondback Tactical First Focal Plane 4-16x44 stands at the intersection of precision and value, delivering an impressive array of features and performance..
  • Extra-low dispersion glass and fully multi-coated lenses transmit a crisp, bright sight picture. The first focal plane, glass-etched reticle keep subtensions accurate throughout the 4x zoom range..
  • The precision-glide erector system uses premium components in the zoom lens to ensure smooth magnification changes under the harshest conditions..
  • Exposed tactical turrets and a side parallax knob give shooters the tools needed for long distance precision shooting. The fast focus eyepiece allows quick and easy reticle focusing..
  • The single piece 30mm tube is shockproof, ruggedly built to withstand recoil and impacts. Strong o-ring seals and nitrogen purging waterproof and fogproof performance..
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Vortex Optics Diamondback Tactical 6-24x50 First Focal Plane Riflescopes - EBR-2C (MOA) Tactical Reticle, Black

  • The Diamondback Tactical First Focal Plane 6-24x50 stands at the intersection of precision and value, delivering an impressive array of features and performance..
  • Extra-low dispersion glass and fully multi-coated lenses transmit a crisp, bright sight picture. The first focal plane, glass-etched reticle keep subtensions accurate throughout the 4x zoom range..
  • The precision-glide erector system uses premium components in the zoom lens to ensure smooth magnification changes under the harshest conditions..
  • Exposed tactical turrets and a side parallax knob give shooters the tools needed for long distance precision shooting. The fast focus eyepiece allows quick and easy reticle focusing..
  • The single piece 30mm tube is shockproof, ruggedly built to withstand recoil and impacts. Strong o-ring seals and nitrogen purging waterproof and fogproof performance..
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