FUJI FILM   W3      a   3D   digital camera

This page is clearly only an appreciation towards my own use of this bi-lens camera issued end of 2010.


After one year using this camera I could appreciate its qualities, detect its limits and begin this page. Then, with more hindsight and in-depth examination I could bring some additional remarks.

The pros are the autostereoscopic screen, its coimpacity, the synchronization of the flash, the control of parallax, the interval 3D shooting, the 3D movie, and many other possibilities which each one will find.

It's a pity that a plug for remote control. is missing. Furthermore an introduction to stereoscopy should have been proposed so that each person who discovers 3D could start with best advice and avoid to be put off by 3D failures due to lack of knowledge of the 3D conditions.

Limits of the 3D effect

With a base 75 mm width it is obvious that as soon as the main subject is too far the stereoscopic effect cannot be perceived. On the contrary for close subjects the effect will be reinforced and the base width can produce stereoscopic windows violation at short distance. But a feature compensate this handicap. A control of the parallax is done depending on the zoom (6,3-18,9 mm).
According to my experiments and calculations there is the convergence of plans at 4,5 m in wide angle and 13 m in tele. This is simulating an angular convergence of 1,9° as wide angle and 1,4° as tele. Very good for portraits at 2 m with a mean zoom
Fuji mentions the first possible plan at 1,3 m in wide angle and 4,1 m  in tele zoom positions.
Outside its favorite domain is for subjects between 5 and 50 m. Over that the 3D effect is too weak or nought. For the far landscape, the solution is in the camera with the A3D mode and the cha-cha method and delayed second picture.
Otherwise, in wide angle setting , for any main subject between 2,5 and 5 m the stereoscopic effect is fine. between 1,5 and 2,5 m. Between 1,5 and 2,5 m care that the background is no more than twice the distance of first plan.
This is usually fine inside.


Stereoscopic ratio  SR

white     no effect
yellow   weak
olive      moderate
>> Click  on the table >>
lavender   strong
mandarin   hyperstereo
red          excessive
display full size or download

Remind us that the control of parallax do not change the stereoscopic effect but sets zero parallax at the center of convergence, gives smoother vision, avoids window violation.

Outside the limits described opposite, take in account l parameters, zoom and distance, can be done from the table.
The focus conversion factor is C = 6,1
The Parallax
The top and left button on the body, is the parallax control.
The first comment is that the manual is very short and unclear on this matter. You must be initiated and forget what is in the manual to use it wisely.
I also recognize that these web pages are too complex for the one who just wish to shoot 3D pictures easily. And moreover there were no pages specific to the parallax.

On this camera there is a parallax function, either automatic or not. Tests and pictures haven't show a noticeable variation between the options.  Only for cases outside the limits I had to make a correction afterwards. This has given a readable and cropped picture.



Know more on parallax

Understand the parallax .
Intentionally without formulas or scientific demonstration this document describes what is the parallax. Its reading is easy.
This document clears up the manual of the W3 on the parallax topic. It must be read with the camera in hands and eventually its manual. This lets know how to set the camera. and how to manually control the parallax in playback mode
This page explains the convergence and its interest..