Nikon 10.5mm Works In Manual Mode

Here is a trick that works for me with a 10.5mm lens behind the standard Ikelite port for this lens.

In bad vis or low light/no light situations where focusing can be difficult for any lens, take a shot of a sharply defined object about 6 inches in front of the lens and then switch the camera to manual focus. If your experience is like mine you will find that all pictures taken from 6 inches to infinity with this setup will be in focus. And there is absolutely no shutter lag. Even in the dark!

The same teknin like with the INON UWL100 with Dome Peter?

I was thinking the last days on this. Why not have it all the time like this ?

If you whant everything in Focus from 6 inches to infinity whay working the Autofocus mode? Is 6 inces the minimum?

Lambis

P.S.On you webpages the samplepics for the nikon 10.5mm Group 8

The first and the last Photo. How far awaý form the model have you been with the camera?

Another work around in this situation:

Focus on your finger: Make a surfers greet with your left hand, put your thumb against the housing and focus on your little finger.

Kees

Lambis, I have just started shooting this way. If all goes well I may keep using for all situations.

I use a close target so that I can focus at least that close. I have used 6 to 12 inches and it doesn't seem to make a difference on shots more than a foot away. After a few more days of shooting, I may just tape the lens to lock in the setting.

Re diver distances, first picture about two feet away and second picture 3 or 4 feet at the most. In general I like to get as close as the divers will let me. In fact, one time I told the divers I would no shoot until they could lick the lens and one actually licked the lens.

Very intresting

Today my Nikon 10,5mm lens have arive. What a lite lens.

The Autofocus is not silent mode like my 18-70

Back to the thema

It will be great to can use the 10,5mm lens like the " Fixed focus mode" one my Olympus 5050

IT will be great for this king off photos where:

a. Visability is low

b. U use the camera like a paparazzi

Wait for the resultats.

Good post Peter. I use the * button on my camera to do the same thing (AF/AE on the Nikon). With it set to AF-On once the button is pressed, the shutter will not to any AF again until you push the * button again.

The Nexus D100 had this control, and I bet the D70 does too.

Cheers

James

James, custom function 15 provides a number of different functions for the AE-L / AF-L button. Unfortunately, AF Lock and Hold is not one of the choices. Too bad because this would be quicker than flicking the manual/auto focus switch.

Hi Peter,

Hmm..when I went diving w/ Craig, he had his D100 set up so it would only AF when he pressed the rear button. All the shutter button did was trip the shutter. Can't you set the D70 up this way?

Cheers

James

AF On will lock and hold....in AF-C or AF-S....

Karl

Nexus did not access the AF-L control with their d100 housing, and while offered on the d70, I'd say its a difficult reach at best, and not a great option for use with the AF-ON function James is describing.

Ikelite, Subal, Sea & Sea, Aquatica, etc all allow easy access of that control.

Hi All

just too add my comments to this thread.

Currently with my Sea & Sea housing i access the AE/L AE/F button with my right hand thumb whilst holding the hand grips. its very easy on this housing as sea & sea extended the control to exit on the right hand side of the housing with a lever so you simply just hold it up with your thumb.

The mode of the button can be changed as james suggested those modes are listed below

1. Exposure & Focus lock when button is pressed and kept pressed

2. Exposure Lock when button is pressed

3. Exposure Lock and stays locked when button is pressed and realeased.

I often use this function whilst having the camera is Aperture Priority locking the exposure for the higher midtones. this hopefully will save time messing about when the unexpected swims past.

4. Auto Focus On/Activate. these frees up the shutton button from autofocus and just simply allows it to realease the shutter

This is the method that james was suggesting "i Think" you just focus the camera to your set distance using this button and then fire away with the shutter.

you might find that the camera needs to be in AF-C whilst trying this method as you can fire the shutter even when the camera is thinking its not in focus in this mode.

I've just completed a test using this method and it works fine, you can lock your focus at a preset distance using the AE/L button , select AF-C as the Focus Mode and fire away with your shutter..

If the camera is in AF-S it will only fire the shutter when it thinks your in-focus, which i suppose could still be quite handy, However I rekon the AF-C using a 10.5mm or 15mm FE preset would work just fine.

regards

craig

Hmm... I wonder how Craig did it w/ his Nexus D100.

Cheers

James

Hi James

I suspect that the method used was as followed

1. have the camera in AF mode, focus to your desired distance

2. once focused, switch the camera to Manual Focus. assuming that nexus covered the focus mode selector switch this lock focus distance

this is a method i've used before if i did'nt have a focusing ring available for manual mode.

3.Adjust the custom settings on the D100 so that the shutter button only activates the Shutter and not Autofocus

i've tryed this method on my nikon F80 and it works just fine.

regards

craig n

wow Peter-

that would have been great in the Galapagos shooting those whale sharks with all the other "stuff" in the way that tends to distract your lens.....or even on my recent Socorro trip.....that plankton particulate gets a little thick at times...

M.