A combination of two items: The 8x magnifier (BH# PE2018) and the Puncher & Holder (B&H# PE2018PH). It is a non-efficient and troublesome operation to determine the quality of a long roll of film by visual inspection and affix marks using magic ink or scissors, but if you use Loupe 2018 with the Peak Puncher & Holder, you can depress and give a V-shaped cut to the film perforation while you are viewing the film - completing the marking operation correctly and quickly.
The Puncher & Holder is a convenient accessory to be fitted to a Peak 2018 Loupe
Fit on its surface, on which a push button for marking is mounted in a slanted state to the bottom of the Loupe 2018, and you will be able to view and check a roll of film
Fit its reverse side, which has grooves for inserting a slide mount to the bottom of the Loupe 2018, and you will be able to view and check the slide