This is the ORIGINAL Dandelion chip, it works on all cameras (except SL1/100D which is not know) including Canon 5D Mark III (3) !!!
(Please do not confuse this with many other chip named after Dandelion sold in the market, they do not work on 5D Mk3)
What does it do :
This chip when fix to an adapter (available separately) mainly enables the camera AF confirmation indicator when you turn the focusing ring manually until the subject gets focus. There's no communication between the lens and camera mounted on the adapter with this chip. Aperture and focusing are still manual whether AF or manual lens is mounted.
This product includes the IC chip, the back support plastic, and an alignment template. If you purchase 2 or more pieces, only 1 alignment tool will be provided. If you need more please send us an email
You can glue it to your existing EOS adapters without having to purchase a new adapter.
Compatible with almost ALL Film SLR and ALL Digital DSLR (except 1DX, SL1/100D which is not know) including EOS 5D Mk1, Mk2, Mk3, 1D, 6D etc
With this alignment template, the chip can be easily installed onto any EOS adapters swiftly and accurately first time & every time
(Sorry, we do not provide service to stick this chip to customers' owned adapters)
New series of AF emulator for Canon EOS digital and film cameras
From autumn 2008 the new AF emulator chip generation IV are produced. Externally the new AF emulator chip looks exactly like the previous version, but internally it’s completely revamped. As from Spring 2009, this emulator chip has improvement to the quality of metal contacts (i.e. the gold plated contacts are much more shiny and therefore quality of contact to the camera pins are better!).
The new version has the programming option, that is, you can change
AF emulator chip’s aperture and focal length settings without removing
it from the camera. In addition, the new AF emulator chip has calibration
function that makes focus confirmation more accurate.
The new AF emulator chip doesn't use the MF mode at default setting
because now focusing works with AF (autofocus) mode. Firstly, this improves
focusing accuracy. Secondly, this enables the user to calibrate AF emulator
chip for different kinds of lenses. Thirdly, the AF confirmation beep is
now available for all cameras (e.g., for film camera EOS 3000N). Focusing
sensor is much more sensitive in this mode.
Another new feature is the "hard" blocking of shutter release until
you get the confirmation signal. If you hold the shutter release when fully
depressed, the shot will be taken immediately when you get the AF confirmation. This "Hard" blocking can be disabled by programming the chip to "MF" mode (function F9 as in the programming instruction).
signal. This allows taking fast-moving subjects.
Lastly, the most important advantage of this new version is the ability
to change settings of AF emulator chip using the Camera itself. See programming
This AF emulator chip is suitable for all Canon EOS digital and film
AF emulator chip's settings:
1) Aperture • From F1.0 to F64, the step depends on camera’s
2) Focal length • From 1 mm to 65535 mm, with each
step of 1mm
3) Correction of focus confirmation dot • 17 levels
4) Focus mode • AF / MF
5) Entering program mode • Delay from 1 sec to 99 sec, with each
step of 1 sec
here to download detailed programming instructions
Additional E-TTL flash Enabled Function
As many manual lens users are awared, E-TTL does not function properly with ordinary adapter. With this proprietary Europe made chip module on the adapter, your E-TTL flash gives you the correct exposure everytime, regardless of aperture setting of your lens, be it f1.8 or f32.
On certain lenses, FEC (flash exposure compensation) is required, you only need to do it once when you change your lens. Afterwhich, E-TTL will perform its role at all aperture settings.
1) Place template on the adapter, making sure the protruding maker (on the template) and the dented gap (for locking the adapter to the camera) are aligned. Should you have purchased this chip from our earlier batches, DO NOT use the alignment template (round type) from earlier batches on this chip, it has a different measurement.
2) Stick the black plastic back support to the chip. For M42 adapter, skip this step
3) Stick the the chip to the adapter
1) Mount your lens to the camera with the adapter that is fixed with
2) Set the camera to A (aperture priority) or M (manual) mode
4) When the chip is working, an aperture value will be displayed on
the camera. i.e. defaulted at f1.4
5) Half press and hold shutter release button, at the same time perform manual focusing by turning the lens focusing ring. The AF confirm indicator in the viewfinder lights up when something
gets into focus.
6) If necessary, set the camera exposure compensation (mainly for very
bright lens e.g. beyond f1.8)
Question: My camera does not show an aperture value (i.e. 'f--')
Answer: When there's no aperture value shown on the camera, it means
the chip is not working. Please proceed to check the following, they
are the main cause of almost all problems.
a) Switch the camera main power off, remove and reinstall the battery.
b) Check the alignment of the chip, make sure the chip is installed
at the correct position
d) Clean the metal contact on the chip, sand it with a fine sand paper
where necessary. Glue residue may have smeared while fixing the chip to
adapter, and glue residue is not visible sometimes.
e) On all EOS 1 series, the old D30 and D60 bodies, you have to enable the AF switch www.tagotech.com/pic/fixing-chip-6.jpg
(This is not required on all other bodies that does not have an AF switch)
f) Reset your camera settings to factory default if the above doesn't
solve the problem.