3X(It is improved based on previous series, and come with bigger lens which can better solve the vignette.
This Viewfinder Magnifier adjusts the viewfinder's image by a ratio of 1.08x-1.60x and makes the viewfinder's image larger.
Magnifying the viewfinder image helps obtain accurate focus with ease. It also greatly enhances focusing accuracy.
You need not worry about the brightness of the viewfinder's image being affected after installation, as this magnifier does not affect the brightness of the viewfinder's image at all.
This magnifier does not create vignetting affect.

type:zoom view finder
How to use:
1.remove the viewfinder eyecup.
2.install the adapter on the viewfinder of the camera.
3.screw the magnifier on the adapter suitably.
Magnification:1.08x-1.60x
Suitability:
For D30/40D/60D/300D/350D/400D/450D/500D/550D/1000D/100D/10D/20D/30D/5D/5D2/7D/EOS1;
For D40/D50/D70/D70S/D80/D90/D100/D200/D300/D500/D500/D700/D800/D3000/D5000/D1H/D1X//D2X//F6/F75/F80/F801S/F90 F100;
For K-M/K7/KX/K10D/K100D/K20D/K200D/*ISTDL2/*ISTDL/*ISTDS/ ISTD;
For α100/α200/α350/α450/α500/α550/α700/α900;
For E-300/E330/E410/E500/E510;
For S2PR0/S3PRO/S5PRO;
For GX10/GX20;
For SD10/SD14;
For Minoltazα5D/α7D/x-700
Colour:Black
Material:plastic

Package Contents:
1 * 1.08x-1.60x zoom viewfinder
6 * adapter ring)