Have I bought the wrong extension tubes?

C

clarkeg

Messages
751
Name
Clarke
Edit My Images
Yes
Guys,

Need some help here, I just bought a set of kenko extension tubes for Nikon that can be seen here:

http://www.amazon.co.uk/Kenko-Auto-...88JU/ref=sr_1_1?ie=UTF8&qid=1317225511&sr=8-1

I have a D700 but when I attach either them individually or all three together and then my 50mm 1.8 all I see is a complete blurrred picture. I can hear the lens trying to focus but through the eyepiece nothing is changing. I also tried to manual focus and it has made no difference.

Can anyone confirm these are the correct extension tubes for a D700?

Thanks
Clarke
 
I hope that you are trying to focus on something VERY close to the lens with all three on, Clarke.
Try just moving the camera slowly towards an object and notice whether it comes in to focus anywhere.
I wouldn't even be trying to use autofocus with extension tubes.
hth.
 
david357 said:
I hope that you are trying to focus on something VERY close to the lens with all three on, Clarke.
Try just moving the camera slowly towards an object and notice whether it comes in to focus anywhere.
I wouldn't even be trying to use autofocus with extension tubes.
hth.
Click to expand...

Hi,

Yes I think that is my problem, first time trying extension tubes but I have realised I have to move very closely to the lens then the subject comes into focus. I was under the silly impression that I could focus from any distance, not realising that I had to get extremely close for the subject to come into focus.

Thanks
Clarke
 
Now we want to see some results, good luck with them.

Glad to be of help. :thumbs:
 
david357 said:
Now we want to see some results, good luck with them.

Glad to be of help. :thumbs:
Click to expand...

_DSC3451Small.jpg


Thanks, first shot I took of a 2p coin, not great by any stretch but gotta start somewhere :)

Clarke

cdiver2 said:
And your next purchase will be http://www.bhphotovideo.com/c/product/193311-REG/Velbon_SUPER_MAG_SLIDER_Super_Mag_Slider.html. I think
Click to expand...

Yea I have a feeling this can get very expensive :)

Clarke
 
For an object that is so long from front to back, you will need a rigid tripod, a focusing rail and some stacking software (or use the one in CS5, it is fine), and time/patience.
At least now you can see the potential.
 
david357 said:
For an object that is so long from front to back, you will need a rigid tripod, a focusing rail and some stacking software (or use the one in CS5, it is fine), and time/patience.
At least now you can see the potential.
Click to expand...

Cheers, that was my next question about stacking software but I cs5 so I'll use that :)

Hooked already lol

_DSC3460Small.jpg
 
I had a try with the cs5 version last night. I hadn't taken enough shots, but could see that it is possible without too much trouble.

There is a simple tutorial here
 to get you started. If you really want to push the boat out, for about £500 :gag: you can get one of these Stackshot, or make one yourself, like this: diy focus rail
 
You must log in or register to reply here.
Back
Top