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
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Lens Overview — Opteka 500mm f/8 HD
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
| Spec | Detail |
|---|---|
| Use Cases | Wildlife, Astrophotography, Birding, Macro |
| Lens Type | Super Telephoto |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 500mm |
| Maximum Aperture | f/8 |
| Camera System | DSLR |
| Lens Mount | T-Mount |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 67mm |
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
Reviews — Opteka 500mm f/8 HD
Videos — Opteka 500mm f/8 HD
$80 Super Telephoto Lens vs $1,399 Tamron 150-500mm — Potato Jet
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.