Best Enhanced Focal Length

Canon 28mm f/3.5 FD-Mount Manual Focus Lens

Focal length and maximum aperture: 35mm 1:2.
Lens construction: 10 elements in 8 groups.
Rear focusing system with USM focus adjustment.
Closest focusing distance: 0.24m/0.79 ft,Focal Length : 35mm Comparable APS-C 1.6x Focal Length: 56 mm.Lens Construction:10 elements in 8 groups.

Focal length and maximum aperture: 35mm 1:2.
Lens construction: 10 elements in 8 groups.
Rear focusing system with USM focus adjustment.
Closest focusing distance: 0.24m/0.79 ft,Focal Length : 35mm Comparable APS-C 1.6x Focal Length: 56 mm.Lens Construction:10 elements in 8 groups.

Beginner Telescope: The Starwatcher telescope is suitable for astronomy beginners to begin a lifetime journey to the stars and planets..
Quality Optics: The telescopes features 60mm aperture, 800mm focal length, and coated optics for enhanced image brightness and clarity..
Powerful Magnification: The high power 600 magnification brings you easily close up to the astonishing celestial bodies..
Multiple Accessories: The telescope comes with 2 eyepieces, a 3x Barlow lens, Moon filter, and a red-dot finder, providing amazing experiences..
Easy Access: The altazimuth mount with slow motion altitude controls make it convenient for steady viewing..
Included components: Cameras & Photo Telescopes.

75mm equivalent focal length on APS-C cameras, 80mm equivalent focal length on Canon APS-C cameras.
Ring-type ultrasonic-type AF motor with full-time manual focusing.
77mm filters. 77mm filters. 0.4m/15.7" minimum focus. Please use a USB dock for calibrating the focus.

...ction adapter for 1.25-inch eyepieces of up to 38mm outside diameter, also can be used as a focal adapter with a T2 thread..
Two adapters in one: The projection and focal adapter consists of two parts - the projection part and the focal adapter. The projection part is used with an eyepiece for achieving a long focal length with small objects, e.g. for individual craters. Use the focal adapter without the use of an eyepiece so employing the focal length of your telescope - for taking photos of the entire Moon, gas nebula or galaxy..
Zooming into the night sky: Use the sliding rear part of the adapter to zoom - pull out to magnify the image - without needing to change your eyepiece. Connect this adapter to each telescope with a 1.25" eyepiece connection. You can use an eyepiece of any focal length - and you can achieve high-magnification images of lunar craters and planets. All you need is a T2 ring (Not Include) and a suitable camera with a bayonet connector..

4 Replaceable Clarity Lenses - Optical glass lenses included 1.5X at 20" Focal Length/2.0X at 10" Focal Length/2.5X at 8" Focal Length/3.5X at 4" Focal Length..
Head-Mounted Design - The shell frame is made of lightweight, durable and impact resistant materials..
Comfort Headband - To easily fit your head and without discomfort. This hands free handband strap improves comfort when wearing..
Adjustable Headband - 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..
Variety Usage - Binocular headband magnifier provides hand-free magnification to meet different magnifying needs: jewelry-making, watch-making, needlework, artwork, electronic inspection, book-reading, print inspection, and stamp-collecting..

... AUTO FOCUS & APERTURE CONTROL: Featuring a motor-driven iris and a gearbox, the adapter supports high-speed autofocus. You can also adjust the aperture of the lens by controlling the anon EOS M (EF-M Mount) camera..
0.71x LENS MOUNT ADAPTER: The focal length of the lens will be shortened 0.71 times on the base of the original focal length, which means the focal length = focal length x 0.71 camera conversion rate. Built-in optical correction groups, making the effective focal length smaller and the shooting range wider..
EXIF TRANSMISSION: EF-EOS M2 lens adapter can transmit the EXIF signals to your camera, dramatically enhance its transmission performance..
SUPPORT FIRMWARE UPDATE: Equipped with a USB interface.Through continuous software updates, VILTROX will help users get a better shooting experience by fixing product bugs, adapting to the new EF lens, and providing more lens and camera combinations..

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.