Opticron MM4 77 GA ED Straight Body Spotting Scope S6200 This is an artifact of

This is an artifact of the optical design (undercorrected spherical aberration at the edges of the frame)

designed to be almost fully circular when aperture is closed

Nikon film SLRs - the mechanical aperture ring is fully compatible with manual-aperture bodies

Dual card slots including CFexpress and high speed SD card

i-TTL integration with Nikon DSLRs

Opticron MM4 77 GA ED Straight Body Spotting Scope S6200 This is an artifact ofMM4 77 GA ED Spotting Scope MM4 77 Fieldscopes are the latest evolution of the MM concept pioneered and developed by Opticron over the past 25 years to meet the ever growing demand for lightweight, space saving high performance field equipment. Designed & manufactured in Japan, the 77mm HDF ED optical system delivers a new benchmark for resolution and colour contrast and comfortably outperforms older Opticron 80mm models. What is more remarkable is