The eye-relief is also long, making them suitable for spectacle wearers. The only slight reservation that I have is that the moulded rubber eyepieces make cleaning the lenses a bit tricky, and I suppose these could perish over time, especially if they are folded up and down a lot. Its weight increases as the square of the distance from the car park. Introduced last year, Opticron's pint-sized spotter is available in 20x50 and 25x60 versions, either straight or angled. On test, a good field of view was shown with some curvature towards the field stop.
Definition is good and performance in poor light levels is excellent.
No f-ratio is quoted but overall the system seems pretty fast. On distant, high-contrast subjects there was some noticeable chromatic aberration, with false colour evident across the outer half of the field. Permission is granted to make single fair use copies for personal use as long as this copyright statement remains with the copy. Any other uses or reproduction of the material in this document is forbidden without express written consent from the author.