Extension Tubes

mata.morrison

mata.morrison

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Matthew
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Probably being a tube myself but anyway... here we go!

Got a 5D1 and a 24-105L, thinking of getting some tubes to go with it... would I get decent results with this combo? If I went with non focus versions would it be really difficult to get focus through the VF at f4 as I know changing aperture is a no-no automatically.

If I remember rightly is there a way of setting the apertures, holding the dof button removing lens adding in the tube then hey presto you have aperture other than f4?

Maybe not but any advise is welcomed :)
 
yes you can do that to set the aperture, however its a lot easier to just fork out for the proper tubes, I have a canon ef 25 II that works well, but I just use my nifty fifty with it. I have also borrowed a mates set of kenko tubes that work very well and are well priced, think you get a 30, a 20 and a 10mm or something for 130 quid odd.
 
TBH I think you'd be much better off getting a cheap set of AF tubes. I've seen some on ebay starting at around £25-30 and you'll find it much quicker and easier to get the shot. I don't think there's many insects etc. that would let you have the time to set the AV, take the lens off, add the tubes and put the lens back on to get the shot.

I got an AF set of Kenko tubes and a mate got some manual tubes at the same time, after a couple of attempts his were being used as a paperweight and he got a similar set to mine.
 
I always use my manual tubes with live view for focussing, I would struggle to focus manually at macro distances through the viewfinder. I'd give auto tubes a go.
 
Another Kenko tube checking in..... erm.... I meant Kenko tube shooter.

I had experimented with quite a few different ways of going macro: reverse ring, reverse coupling and manual tubes. None are as good as a set of auto tubes.

For reverse ring and manual tubes, You are correct in you hold down DoF preview button then dismount the lens for your desired aperture. BUT when trying to take a photo like that, the view finder is like having a 8 stop ND filter over it, too dark to be useful.

For reverse coupling, you get heavy vignetting. and distortion depending on the lens you are using.

With a set of auto tubes, a prime lens you will even be able to auto focus. I use my 85mm f1.8 with it and it can auto focus in good light, turning my £200 85mm into a macro lens.
 
Thanks guys all this sounds good... auto tubes it will be then. Now to find examples of the 24-105...

Don't think I can stretch to a 50 1.8 just now!
 
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