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    Swarovski SLC. Zeiss Conquest Nikon MHG and Vortex Razors 10x42

    Well it's certainly a bigger problem with larger oculars, but I've found that it's not always a 1:1 correlation. Eyecups are a real "goldilocks" thing for me where they have to be just right or they annoy me, too big is a problem (I have a relatively narrow IPD + relatively wide nose) and too...
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    Swarovski SLC. Zeiss Conquest Nikon MHG and Vortex Razors 10x42

    Yes, I'm sure I will be corrected if I miss a detail of Swarovski history, but until the SV series most Swaro roofs (SLC and the original EL series) had a "traditional" distortion pattern with pincushion, which seemed to be typical of the era (e.g. Leica Trinovid + Ultravid have always had...
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    Swarovski SLC. Zeiss Conquest Nikon MHG and Vortex Razors 10x42

    Well, let's not conflate eyecups with oculars. Larger oculars are of required to get a wide field of view with good eye relief, and of course ocular size is to some extent correlated with eyecup size... but it really only sets the minimum internal diameter. It doesn't have anything to do with...
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