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Opteka 500mm f/8 HD Telephoto Lens

The Opteka 500mm f/8 HD is a 500mm f/8 lens designed for T-Mount mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Opteka 500mm f/8 HD Telephoto Lens

Opteka 500mm f/8 HD Telephoto Lens

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Lens Overview — Opteka 500mm f/8 HD

The Opteka 500mm f/8 HD Telephoto Lens is a manual-focus prime lens built around a T-Mount interface, making it adaptable to a wide range of DSLR camera systems via the appropriate T-mount adapter. With a fixed focal length of 500mm and a maximum aperture of f/8, this lens sits firmly in the super telephoto category, offering significant reach for subjects at distance. Weighing just 360g, it is notably lightweight for a lens of this focal length, making it an accessible option for photographers who want long-reach capability without the physical burden of larger telephoto designs.

The 67mm filter thread provides a standard size for attaching filters directly to the front of the lens. As a full-frame format lens, it is compatible with both full-frame and crop-sensor DSLR bodies using the appropriate T-mount adapter. Focus is entirely manual, with no autofocus capability, which means the photographer is fully responsible for achieving sharp images.

There is no image stabilization, so a stable shooting platform such as a tripod is strongly recommended at this focal length. This lens suits patient shooters comfortable with manual operation who want reach at a modest weight and price point.

Key Features — Opteka 500mm f/8 HD

500mm Prime Focal Length: Fixed 500mm field of view delivers consistent super telephoto reach for distant subjects like wildlife and sports.

T-Mount Interface: Universal T-Mount base accepts brand-specific adapters, making this lens compatible with Canon, Nikon, Sony, Pentax, and other DSLR systems.

f/8 Maximum Aperture: Fixed f/8 aperture is narrower than most telephoto lenses, so adequate light or a stable shooting platform is needed for sharp results.

Lightweight at 360g: At just 360g, this lens is unusually compact for a 500mm prime, reducing fatigue during handheld use or travel.

Full-Frame Coverage: Image circle covers full-frame sensors and is equally compatible with APS-C and other crop-sensor DSLR bodies.

Manual Focus Only: No autofocus motor is included, so focus must be set by hand — a tripod and careful technique are recommended at this focal length.

Lens Specifications — Opteka 500mm f/8 HD

Opteka 500mm f/8 HD full specifications
SpecDetail
Use CasesWildlife, Astrophotography, Birding, Macro
Lens TypeSuper Telephoto
FormatFull Frame
Zoom/PrimePrime
Focal Length500mm
Maximum Aperturef/8
Camera SystemDSLR
Lens MountT-Mount
AutofocusNo
Focus TypeManual
Image StabilizationNone
Filter Thread67mm

Description — Opteka 500mm f/8 HD

The Opteka 500mm f/8 HD Telephoto Lens is a prime super telephoto lens designed for DSLR camera systems, featuring a T-Mount interface for broad camera compatibility. With a fixed focal length of 500mm and a maximum aperture of f/8, it delivers significant reach while maintaining a remarkably low weight of just 360g. The full-frame lens format ensures coverage across both full-frame and APS-C sensor DSLR bodies.

A 67mm filter thread is provided at the front of the lens, accepting a standard range of screw-in filters. Focusing is entirely manual — there is no autofocus system — placing full control in the hands of the photographer. No image stabilization is present, so shooting from a stable platform is recommended to get the sharpest results at this focal length. The T-Mount design means a separate adapter specific to your camera brand is required to mount the lens, but this also means a single lens can be shared across multiple camera systems by swapping adapters.

Pros — Opteka 500mm f/8 HD

  • ✓Ultra-compact 360g weight for a 500mm focal length prime lens
  • ✓Full-frame compatible lens format, usable on a broad range of DSLR sensor sizes
  • ✓Standard 67mm filter thread for straightforward filter use

Cons — Opteka 500mm f/8 HD

  • ✗Manual focus only — no autofocus support makes tracking moving subjects challenging
  • ✗Maximum aperture of f/8 is relatively narrow, limiting performance in lower light conditions
  • ✗No image stabilization, making handheld shooting at 500mm difficult

Videos — Opteka 500mm f/8 HD

$80 Super Telephoto Lens vs $1,399 Tamron 150-500mm — Potato Jet

Resources & Downloads — Opteka 500mm f/8 HD

Manuals & Guides

Frequently Asked Questions — Opteka 500mm f/8 HD

Does this lens support autofocus?+
No. The Opteka 500mm f/8 is a fully manual focus lens with no autofocus capability. All focusing must be done by hand using the focus ring.
What mount does this lens use?+
The lens uses a T-Mount (also known as T2 mount). To attach it to your specific DSLR body, you will need a compatible T-mount adapter for your camera system, which is typically sold separately.
Is this lens compatible with full-frame cameras?+
Yes. The lens format is listed as Full Frame, meaning it is designed to cover a full-frame image circle and can be used on both full-frame and crop-sensor DSLR bodies.
Does the lens have image stabilization?+
No. The image stabilization spec is listed as None. At 500mm, using a tripod or other stable support is strongly advisable to avoid camera shake.
What filter size does this lens accept?+
The lens has a 67mm filter thread size, which is a common size that gives you access to a wide selection of available filters.
How heavy is this lens?+
The lens weighs 360g, which is unusually light for a 500mm super telephoto prime lens, making it easier to carry and use in the field compared to heavier telephoto options.

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