Best Long Focal Length Lens

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..

Fast f/2.8 constant aperture with an electromagnetic diaphragm.
Sensational image quality and sharpness with virtually no distortion, Focal Length Range : 24 to 70 millimeter.
Minimum Focus Distance : 35 to 50 millimeter focal length : 1.2 feet (0.38 meter) from focal plane.
24, 28, 70 millimeter focal lengths : 1.3 feet (0.41 meter) from focal plane.
88.0 millimeter maximum diameter x 154.5 millimeter (distance from camera lens mount flange).
4 stops of Vibration Reduction for handheld and low light shooting, Nonstick glass makes it easier to wipe off water, dirt and smudges.
Evolution of Nikon's legendary 24 to 70 millimeter workhorse.Type:Fmount, Type E AF S lens with built in CPU and F mount.Lens Elements:20.

【Compatibility】VILTROX EF-EOS M2 Speed Booster compatible with Canon EF Lens to Cano EF-M Mount mirrorless camera EOS M M2 M3 M5 M6 M6II M10 M50 M50II M100 M200..
【0.71x Focal Length Reducer 】Built-in optical correction group, when using this adapter, the focal length of lens should be shortened x0.71 based on the original,that is equivalent focal length = focal length x 0.71x camera conversion rate,which make the effective focal length smaller and the shooting range wider..
【Aperture increased by 1 stop】EF-EOS M2 Speed Booster can increase one stop aperture to blur the background and better highlight the theme..
【Auto Focus & Aperture Control】EF-EOS M2 Speed Booster with steady, fast and smooth autofocus, let you easy to shoot in the face of fleeting beauty. You can also adjust the aperture of EF lens by control EOS M series camera body..
【EXIF signal transmitting & IS Function】Cooper gold-plated contacts with great conductivity enhance the EXIF info. Transmission between lens and camera body. Built-in IS function, making your focus much more precise an....

Olympus WCON-P01 Wide Converter - Front Lens Cap - Rear Lens Cap - Olympus 1 Year Warranty.
Lens Combinations: Master lens: M.ZUIKO DIGITAL 14-42mm f:3.5-5.6 II (Focal length set to maximum wide position recommended).
Focal Length: 11mm (Micro Four Thirds)/20.8 mm (35mm format).

Wide-angle prime is designed for FX-format Nikon F-mount cameras, however can also be used with DX models where it will provide a 36mm equivalent focal length..
Unique macro lens design offers a greater-than-life-size 2:1 maximum magnification along with a minimum focusing distance of 1.5' and a working distance of just 0.8"..
The long, tubular lens barrel contributes to producing a distinct bug-eye perspective and, despite the short working distance, the length of the lens barrel places the camera at a comfortable shooting distance..
Wide-angle 24mm focal length affords greater depth of field and more surrounding detail than traditional telephoto macro designs, which tend to isolate subject matter with shallow depth of field..
Optical design includes two extra-low dispersion elements that control color fringing and chromatic aberrations in order to produce greater clarity and color accuracy. One extra refractive index element is also featured, which reduces spherical aberrations and distortion for improved sharpness and accurate rendering..

High performance E mount lens with excellent contrast.
Minimum Focus Distance : 1.48 (Wide) 3.12 ft (Tele), Maximum Magnification ratio : 0.11x, Focal Length : 18 105 mm.
Versatile 27 158mm (35mm equiv.) zoom range. Angle of view (APS C): 76° 15°. Number of aperture blades are 7.
Constant F4 maximum aperture throughout the zoom range. Filter diameter (mm):72 mm.
It is recommended that you use a lens hood to reduce flare and ensure maximum image quality.Focal Length (mm) 11/16 4 1/8 35 mm equivalent focal length (APS C) 1 1/16 6 3/16 inches.

Lens not Zoomable. Footnotes:"35 mm equivalent focal length (APS-C)" and "Angle of View (APS-C)" are with interchangeable lens digital camera....
Minimum Focus Distance : 0.8 ft (0.24 m).
Focal Length : 16 mm. Angle of View (APS-C)- 83°. 35 mm equivalent focal length (APS-C)- 24 mm.
Compatible with optional VCL-ECU1 ultra-wide converter and VCL-ECF1 fisheye converter.

Extends the focal length of your lens by 2x.This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L.
Outstanding image quality thanks to new optical design and improved AF performance.
Highly resistant to dust and water for use in harsh conditions.
Built in micro computer enables effective communication between lens and camera.
Lens coatings are optimised to minimise ghosting and flare.