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#ISSUES WITH REIKAN FOCAL CALIBRATION DOTH 1.10 HOW TO#
#ISSUES WITH REIKAN FOCAL CALIBRATION DOTH 1.10 UPDATE#
#ISSUES WITH REIKAN FOCAL CALIBRATION DOTH 1.10 MANUAL#

Take a baseball match for instance – not that I’ve ever covered one mind!

However, if you are doing sports photography for instance, you are imaging subjects that are much bigger and a lot further away.Ī 500mm f4 on an FX body has over 2 meters depth of field at f5.6 when focused at 40 meters. The subject is too small and so to close to the camera and 500mm lens for trap focus to work effectively.

#ISSUES WITH REIKAN FOCAL CALIBRATION DOTH 1.10 MANUAL#

This shot is done with a manual focus trap – a completely different technique, as described HERE Trap Focus only works with a single AF sensor, AFS-S – so correct prediction of that one AF sensor/subject alignment to get the required ‘bits” in sharp focus and DoF is going to be difficult.ĭo NOT think you can pull this wildlife shot off using TRAP FOCUS.īy the time the camera has detected the sharp focus and got over the system lock time and triggered the shutter, the bird will be way closer to the camera – and sharp focus in the resulting image will be behind the tail! Trap Focus only works in AFS – not in AFC.

Now you’ve got a D4 that does trap focus. Got that? Good! Oh, and by the way, the award-winning shot you just missed – it would have been epic!

Keeping that shutter button depressed and NOT touching the lens or AF button, move back towards the computers monitor screen – the shutter will fire when the monitor screen is sharp.

Nothing happens (if it does then start again!).

Jam your finger down on the shutter release.

Move the camera directly away from the computer monitor screen so the image in the viewfinder goes soft.

If you’ve pressed the latter TAKE your thumb OFF!.

Focus on your computers monitor screen using either the manual focus ring of the lens or the rear AF-ON button next to the Command Dial.

Rotate the Sub Command Dial (front one) to select S (single) and NOT Auto.

Press the AF mode button and rotate the Command Dial (back one) to select AFS and NOT AFC.

Set the D4 focus mode selector (the lever on left side of the body front) to AF.

Go to Custom Settings a4 AF activation and set to AF-ON only – this takes to AF activation away from the shutter release button.

Go to Custom Settings a2 AF-S priority selection and set to FOCUS.

#ISSUES WITH REIKAN FOCAL CALIBRATION DOTH 1.10 UPDATE#

Update firmware to v1.10 – read the instructions FULLY before you attempt this, otherwise you may need another camera!.

#ISSUES WITH REIKAN FOCAL CALIBRATION DOTH 1.10 HOW TO#

The failing lay in the flawed D4 focus priority – even if you told it to only trip the shutter when the image was deemed ‘in focus’ by setting CS a1 & a2 to FOCUS, it would still fire as if a1 and a2 were set to release priority.īut the new firmware update v1.10 has given trap focus back to the D4, but before you start jumping up and down and getting all excited you need to know how to set it up, and bare in mind that “as a technique” trap focus might not suit what you had in mind. Having said that, it’s got me out of a bind more than once over the years, but ever since the D4 came out you’ve not been able to use it. It’s a technique that a lot of sports photographers find very useful, but I find it has very limited use for my wildlife & natural history work. Well it’s basically pre-focusing on a particular distance or spot where you expect the subject to be or to pass through.Īs the subject enters the frame and gets closer to the camera it’s also getting closer to the pre-focused distance, and when it reaches the set focus distance the camera actually detects the subject/image is sharp and so takes the shot.īasically you sit there with the shutter button fully depressed, but no shots get taken until the camera AF system deems the subject is now in focus. Well, with today’s (March 18th 2014) update version 1.10 trap focus is back – in a fashion. What was it Nikon said – “we left it off the D4 because no one wanted it”….or words to that effect.