Folding Card Lens Focus Testing Tool Professional Calibration Align u3

Folding Card Lens Focus Testing Tool Professional Calibration Align u3 1596732 Langsung Order, Stock Ready Pre-Order. Perkiraan Sampai Alamat 10-15 Hari Beli DISINI, dari China sudah termasuk PAJAK Garansi Uang kembali apabila barang Rusak, Beda Ukuran/Produk Features: This compact ruler allows you to determine if your lens is auto-focusing accurately as it should. It is an essential tool that is particularly useful when shooting with a shallow depth of field, where focusing should ideally be spot on . You can use this ruler to determine how off the focusing is for a particular camera / lens combination and, on supported cameras, adjust the camera #39;s auto-focus settings to resolve this On for Nikon cameras, this feature is known as AF Fine Tune . For Canon and for Sony cameras, it #39;s known as AF Micro Adjustment . Please refer to your camera #39;s instructions manual to see if this feature is present Size:19 x 12.3cm How to use: Set up the ruler. Ensure both the camera and ruler are level, exactly perpendicular and at the same height. It is best to mount the camera on a tripod to do this. Set the lens to the widest aperture to obtain the shallowest depth of field. This will make it easier to determine if your lens is focusing accurately. Auto-focus on the cross hair at the center of the ruler, then take a photo. Inspect the photo to see if focusing is accurate. It is recommended that you do this on a computer since you will be able to see better on a bigger screen. If focusing is accurate, the #39;0 #39; on the ruler should be the sharpest point on the image and the other numbers get blurrier as you move away from the 0. If any number above the 0 is clearer, then your lens is backfocu 0