Specification
Product Details
- Brand: Kelda
Features
- 500mm f/8 Studio Series Telephoto Manual Mirror Lens
- Use with manual or automatic SLR & DSLR cameras
- Multi Coated low-dispersion glass, anti-reflection coating
- A Multi-coated low-dispersion glass capable of producing sharp, high definition images
- T-Mount Lens (T2-thread) with Pentax PK adapter
Product Description
Brand NEW Studio Series 500mm f/8 Telephoto Manual Mirror Lens
This Studio Series lens is computer-designed using a combination of lenticular light refraction and
reflection optics--the same physics used in many professional telescopes.
Combined with advanced manufacturing techniques, the result is a lens with very sharp picture
quality with less color abberation which is considered the most harmful factor in the field of
telephoto photography.
This lens is a highly complex, precision-made, optical instrument it is also compact and lightweight.
It is ideally suited for wildlife and sports photography. It has a fixed aperture of f8. It comes with
a soft pouch and three (3) rear mounted 30.5mm filters - ND2, ND4 and Skylight.
Features:
* Use with manual or automatic SLR & DSLR cameras
* A Multi-coated low-dispersion glass capable of producing sharp, high definition images
* Auto focus and infrared compatible
Compatible Cameras:
Pentax PK Mount Cameras
Lens Type:
500 mm f/8 Telephoto Mirror Lens
Specifications:
Elements/Groups: 8/8
Fixed Aperture: f/8
Diameter: 3"
Length: 3.4"
Weight: 360 grams
Coating: Multi
Filter Size Rear: 30.5mm
Filter Size Front: 72mm
Contents
* Mirror Lens
* Front and Rear Lens caps
* Storage Pouch
* Specifications and information sheet
* 30.5mm filters - ND2, ND4 and Skylight
* T-Pentax PK mount adapter
Customer Reviews
Most helpful customer reviews
1 of 1 people found the following review helpful.
Very much worth the price
By mgoodyear
The lens is a Vivitar Series 1; it's inexpensive both because its aperture is not adjustable and because it uses an adapter to mount to the camera body.Only f8 is available; increased-density filters are included in case the light is too bright for the camera to compensate with ISO and/or shutter speed.Use of the adapter works because there's no need for the camera to adjust the aperture, and the focus is manual too.Because of the adapter, my lens doesn't look "right side up" on the camera; but for a quality telephoto image at a fantastically low price I'm very happy.
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