Eyepieces + Loupes

DK-17F Fluorine Coated Eyepi
Nikon
$60

DK-29 Rubber Eyepiece Cup
Nikon
$15

EC-XH Wide Eyecup for X-T1,
Fujifilm
$43

EC-GFX Round Eyecup for GFX
Fujifilm
$43

Eyepiece Diopter +3
Voigtlander
$46

Eyepiece Diopter +1
Voigtlander
$46

HoodLoupe Outdoor Loupe for
Hoodman
$189

Eyecup for GH4
Panasonic
$27

DMW-EC6 Eyecup for Lumix S1
Panasonic
$60

Large Eyecup for G9
Panasonic
$32

Eyecup for GX7
Panasonic
$34

Hoodeye for all Sony A7 mode
Hoodman
$42

M10 Thread Adapter
Leica
$79

Correction Lens II -M, -3.0
Leica
$330

Correction Lens II -M, -2.0
Leica
$330

Correction Lens II -M, -1.5
Leica
$330