Macro

PREM

PREM

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I have bought a set of three tubes, just to see if there is an interest in macro. If it grabs me I will look for a dedicated lens. When I first tried the tube I couldn't change the F stop. Just a blank Space where it should be, I had my nifty 50 on.

I can only assume the cheep tube has no connections to alter the settings on any lens I put on.

Are there tubes that allow full use of the lens?

Thanks
 
There are many comments on how to pre set the aperture before removing the lens to add the tubes, you'll have to search sorry *** I'm a Nikon user
 
I got a set of real cheapo unbranded auto tubes from eBay just over three years ago and they are still going strong. With no glass and little to go wrong I think there is no point spending a lot of money on extension tubes.
 
I got a set of polaroid auto lenses from amazon last eyar and they function properly, cost £60 all in. Seem solidly made and have I no complaints.
 
MadWoman said:
I got a set of real cheapo unbranded auto tubes from eBay just over three years ago and they are still going strong. With no glass and little to go wrong I think there is no point spending a lot of money on extension tubes.
Click to expand...

:plusone:

As long as the contacts are reliable, the mounts are strong and true and the air in the tubes is fresh (!), they'll do the job.
 
I looked at the cheaper tubes, but got a set of polaroids in the end, only had a little play with them so far and they work well. Will be giving them a good workout in the next few weeks hopefully.
 
PREM said:
I have bought a set of three tubes, just to see if there is an interest in macro. If it grabs me I will look for a dedicated lens. When I first tried the tube I couldn't change the F stop. Just a blank Space where it should be, I had my nifty 50 on.

I can only assume the cheep tube has no connections to alter the settings on any lens I put on.

Are there tubes that allow full use of the lens?

Thanks
Click to expand...

you can change your aperture with those tubes too.

mount your lens onto your camera
set the aperture to what you want
press the DoF button
take your self off whilst still holding down DoF buttong
mount lens to tubes and tubes to body
voila, lens & tubes at stepped down aperture


you'll need to redo the process every time you want to change the aperture though
 
thanks a lot guys, it does sound a pain removing the tubes and attaching the lens back on to try a dif stop. I am very cautious when i change lens's doing that will increase my BP.

Its difficult learning when you dont know what setting to start at. But thats like any new skill, trial and lots of error.

thanks
 
PREM said:
thanks a lot guys, it does sound a pain removing the tubes and attaching the lens back on to try a dif stop. I am very cautious when i change lens's doing that will increase my BP.

Its difficult learning when you dont know what setting to start at. But thats like any new skill, trial and lots of error.

thanks
Click to expand...

Get a set of the fully functional extension tubes, like the polaroid ones, and you don't need to keep removing the tubes and re-attaching the lens everytime you want to change the aperture. The lens works the same way as if the tubes weren't there - with the obvious factors of less light, slower focus (if using auto) and narrower focal plane.
 
I know a lot of people don't do it but both Canon and Nikon say you should turn the camera off before removing or fitting a lens. ;)
 
Uneducated_Rick said:
you can change your aperture with those tubes too.

mount your lens onto your camera
set the aperture to what you want
press the DoF button
take your self off whilst still holding down DoF buttong
mount lens to tubes and tubes to body
voila, lens & tubes at stepped down aperture


you'll need to redo the process every time you want to change the aperture though
Click to expand...

You sure? I thought DoF was controlled through the aperture, and the aperture blades are sprung loaded to open up when not controlled by the camera as there is a little arm that controls them in the body.
 
george g said:
You sure? I thought DoF was controlled through the aperture, and the aperture blades are sprung loaded to open up when not controlled by the camera as there is a little arm that controls them in the body.
Click to expand...

It is, (and by the magnification; subject distance & focal length.)

Just looking through the viewfinder will have the aperture wide open. If you set a smaller apertuer, it flicks to the smaller size as the photo is taken. Leaving it open as wide as possible allows more light for focussing etc.

There is a Depth of Field Preview button on the camera around the lens mount which will close the aperture while you are pressing it. Removing the lens while doing so leaves the aperture as-is untill reconnected.
I believe some systems have the lever controlled aperture, but the current Canon range don't.
Just be aware that with a small aperture, needed for useable depth of field, things get very dark and external lighting is required.
DoF will be measured in millimeters if you get close enough :)

Good luck :)
 
Andy_S said:
It is, (and by the magnification; subject distance & focal length.)

Just looking through the viewfinder will have the aperture wide open. If you set a smaller apertuer, it flicks to the smaller size as the photo is taken. Leaving it open as wide as possible allows more light for focussing etc.

There is a Depth of Field Preview button on the camera around the lens mount which will close the aperture while you are pressing it. Removing the lens while doing so leaves the aperture as-is untill reconnected.
I believe some systems have the lever controlled aperture, but the current Canon range don't.
Just be aware that with a small aperture, needed for useable depth of field, things get very dark and external lighting is required.
DoF will be measured in millimeters if you get close enough :)

Good luck :)
Click to expand...

Ah OK, my reference was Nikon body/lenses. The aperture on those are sprung loaded that reset to wide open once you remove the lens. Canon are obviously different. :thumbs:
 
PREM said:
thanks a lot guys, it does sound a pain removing the tubes and attaching the lens back on to try a dif stop. I am very cautious when i change lens's doing that will increase my BP.

Its difficult learning when you dont know what setting to start at. But thats like any new skill, trial and lots of error.

thanks
Click to expand...

Chuck them in the bin and mark it down to experience - I did ;)

Buy a set of auto tubes so you retain aperture control from the body, a much more enjoyable experience .
 
Dogfish_magnet said:
Chuck them in the bin and mark it down to experience - I did ;)

Buy a set of auto tubes so you retain aperture control from the body, a much more enjoyable experience .
Click to expand...

Definitely agree with that - macro shots can be difficult enough as it is without adding extra difficulties.
 
Yes, no real loss if I bin them. Another experience that didn't cost much except time, but it has tweaked an interest.

Thanks for the advise:thumbs:
 
They are definetely worth trying, I've been very pleased with the results I've had from the start with mine and I'm looking to do more.
I've had an auto set sat in my basket for a while just waiting to commit.
 
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