Opticron's best variable magnification eyepieces for binoculars.
Top quality lenses and mechanics, hence a higher price. SDLv34 has been improved with more lenses and optimized for Opticron's binoculars compared to versions 1,2 and 3. Now hardly any focusing is required when going from one magnification to another. SDLv4 provides, among other things, a better field of view than its predecessors and, for example, the HDF zoom, and is therefore somewhat better suited for glasses wearers. Note that this zoom eyepiece is waterproof, for example HDF T zoom is not.
Product information
Dimensions: 68 x 52 mm
Weight: 260 grams
Eye distance (eye-relief, max-min): 20-18 mm
Lens diameter: 25 mm
Waterproof: Yes
Warranty: 10 years
Magnification (on model):
MM3/4 50 12-36x
MM3/4 60 15-45x
MM3 80/MM4 77 18-54x
HR 66 18-54x, HR 80 24-72x
ES 80 20-60x, ES 100 27-80x
Field of view (w/1000m):
ES 80 33-20
MM4 50 56.7-37.2
MM4 60 46.5-30.5
MM4 77 35.1-22.9