I have a Schneider 8x. Bought new for $$$. Then I have backup loupe ó an Agfa $8.95 8x loupe that works equally well.

Iíve shot assignments as cold as -17F (without wind chill). Plastic barrel loupes are better in the cold bc the plastic doesnít conduct away your heat like metal.

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Best cheap affordable LF large format loupe IMHO.