This product is compatible with Minolta MD DSLR lenses.
During breaks between shoots,you can attach an idle camera lens to this converter to create high-magnification,high-definition telescopic observations of targets. Additionally,it features macro focusing capabilities,making it suitable for microscopic observation and research of various specimens.
Featuring a lossless imaging structure,it fully utilizes the lens’s excellent color reproduction,aberration correction,and field curvature correction,effectively transforming a photographic lens into a high-powered telescope.
The 4th Generation Telescope Converter has a focal length of 10mm,and the resulting magnification is equal to the lens’s focal length divided by 10. For example,a 70‑200mm lens paired with this converter provides a telescopic magnification of 7×‑20× with continuous zoom.
Its lossless optical path design also allows for a compact size; for Minolta MD mounts,the dimensions are only 55x65mm. It can replace the lens cap without affecting your camera bag setup and can be installed on lenses without hoods,enabling immediate viewing.
Q: Why is the front aperture small?
A: This area is near the lens’s focal point,where the beam diameter is very small. Although the aperture appears small,it effectively achieves an aperture of F4. If the lens has a larger maximum aperture,it is not suitable for use as a telescope,so the aperture is limited to F4.
Q: Why is the eyepiece axis offset?
A: Similar products with central eyepieces require the use of roof prism groups and field flattener lenses. This product utilizes an Abbe-Pörop prism group,which,unlike roof prisms,does not need coated reflections and relies on the prism’s total internal reflection,making it durable and effective. Additionally,the innovative design omits field flattener lenses,resulting in superior imaging.