Collection: DOF Adapter User Guide

The ULANZI DOF Adapter is an advanced smartphone SLR/DSLR & Cinema lens adapter.


It allows you to use an SLR/DSLR & Cinema* lens with the powerful smartphone camera that you have in your pocket for an incredible bokeh, shallow depth-of-field and film-style look and the ability to pull focus manually like on professional cinema cameras.


Please note: Using a DOF adapter is not simply "point and shoot" capable; it takes time and practice to achieve the desired results. DOF adapters are a great way to express your artistic nature, allowing you to create unique photographs and

videos with your camera phone.


ULANZI DOF Adapter is a Sony E-Mount adapter, most of the full-frame manual lens can be used with the proper adapter rings to E mount.


Note :

  • Only Full Frame Manual lens is compatible.

  • For best results, we recommend using fast lenses (f0.9-f2.8)

  • DOF adapter will decrease the quality of photos and videos taken with it

  • There may be visible texture, dimples and/or specks of the focusing screen on the image

  • Vignetting, barrel distortion and chromatic aberration are common issues with any DOF adapter

  • The DOF adapter flips the image upside-down. Need Apps to use the DOF.

Recommended Apps

The DOF Adapter displays your image upside down. For the best

experience, we recommend using one of the third-party apps below to flip

the image back to normal while shooting:

Mounting the DOF Adapter

  1. Mount your phone into the ULANZI U-Rig Metal or other 17mm Lens Mount Phone Case and align the lens mount with your phone’s main camera.

Note: it is compatible with all ULANZI Phone Case and Phone Cage.


 2. Screw the DOF Adapter into the lens mount.

  1. Release the Screw (A) and rotate the barrel (B) clockwise until the focusing screen is aligned horizontally; then lock the Screw.

4. Attach your SLR or DSLR lens to the bayonet mount.

Getting started
  1. Launch your camera app and invert the image back to its normal orientation.

  2. Lock your phone's focus (usually by tapping/holding the screen or the square on some apps).

  3. Turn the focus dial on your SLR/DSLR lens until your image is in focus.

Compatible lenses

The main purpose of the DOF Adapter is to add a beautiful, real shallow depth-of-field and bokeh to your photos and videos. For the best results, we recommend using lenses that meet the following criteria:

  • Fast  There is some light loss when using the DOF Adapter. For the best results, we recommend using fast lenses with an aperture between f0.9 - f2.8, and opening your aperture as wide as possible. You can use lenses with a slower/closed aperture, but results may vary.

  • Full frame  The DOF Adapter is designed for full-frame lenses.

  • Manual/mechanical focus  Your lens needs to be able to focus manually without being attached to a DSLR camera body. Lenses rely on electronics or a camera body to focus are not compatible with the DOF Adapter.

  • Compatible lens mounts 
     Direct mount
     Sony E Mount Manual lenses can be mounted directly onto the DOF Adapter

     Adaptable mount

    The following lenses can be mounted on the DOF Adapter with a simple adapter ring. Note: We will offer these adapter rings on our web store soon - stay tuned!  Canon EF、Nikon F 、Nikon G 、Pentax K 、M42

Attention: Mirrorless and/or Micro Four Thirds lenses are not compatible with the DOF Adapter.

If you're unsure if your lens is compatible, please send us a link to the technical specs of the lens at and we will do our best to find out for you.


The DOF Adapter is mostly maintenance-free. The sensitive focusing screen

is fully enclosed for protection from dust and damages. Due to the

nature of this technology, there may still be microscopic imperfections

or specs on the diffuser surface of the focusing screen - which is


ATTENTION: Disassembling the DOF Adapter will void the warranty and likely damage the internal optical components.