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FORUMS Photography Talk by Genre Macro Talk 
Thread started 27 Feb 2006 (Monday) 17:48
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STICKY: Show us your Macro Rig

 
Tendy
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Dec 21, 2008 03:16 as a reply to  @ post 6916610 |  #436

There's just one or two issues with this method. One is you can't possibly know what aperture you're gonna need if you want precise DOF,(and sometimes using a lens at its smallest aperture is not the best solution with macro as you get diffraction) and Two all that removing and replacing of the lens is gonna introduce dust onto the sensor. Much better to get a $2 coupling ring and attach a shorter lens in reverse onto the front of your main lens. Problem solved as you have full control again. You just use the aperture on the reversed lens to get the DOF you want.


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brecklundin
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Dec 21, 2008 13:39 |  #437

Brypan wrote in post #6916610 (external link)
Yes, but do you need to keep holding the DOF preview button until taking the picture? The would require three hands. Also, I knew to set the aperture, but justo be sure, lower aperture means brighter and sharper, correct?

no reason for that...try it on a lens and look through it after removing it from the body and note the size of the aperture set on the lens, then remount the lens, change the aperture and remove it again...then look and you will see the difference. Remember the aperture is set in the lens not the camera...plus when attached to tubes (non-conducting) or reverse mounted there is no electrical connection between the lens and camera which is the whole reason for this procedure to begin with. ;)

FYI, lower aperture number = BIGGER opening hence more light and probably less DOF. Whether it is Sharp enough depends on the lens and the aperture at which the lens works "best".


Real men shoot Pentax because we're born with our own Canon's!!
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brecklundin
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Dec 21, 2008 13:46 |  #438

Tendy wrote in post #6919120 (external link)
There's just one or two issues with this method. One is you can't possibly know what aperture you're gonna need if you want precise DOF,(and sometimes using a lens at its smallest aperture is not the best solution with macro as you get diffraction) and Two all that removing and replacing of the lens is gonna introduce dust onto the sensor. Much better to get a $2 coupling ring and attach a shorter lens in reverse onto the front of your main lens. Problem solved as you have full control again. You just use the aperture on the reversed lens to get the DOF you want.

Very true about the potential for more dust...as for the knowing the aperture ahead of time...yes and no...we sould know the correct aperture really, plus you have shutter speed and ISO to control exposure.

But I agree an adapter ring and a manual lens is the best option over non-conducting tubes. That was why earlier (I think it wwas this thread??) I suggested an adapter and haunting a local thrift shop for faster old lenses for next to nothing...as long as the aperture on a lens changes as ya move the dial it will probably be OK to take a chance with...of course it would have been dropped about 1000-times and be completly out of alignment... ;)


Real men shoot Pentax because we're born with our own Canon's!!
{Ok...ok, some of use just have a PnS but it it always makes me happy! :D}
Pentax K5, K20D, Three Amigos (Pentax FA 31/1.8 Limited Silver, Pentax FA 43/1.9 Limited Silver, Pentax FA 77/1.8 Limited Silver), Pentax DA 35mm F2.8 Macro Limited, Sigma 24-60/2.8

  
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Tendy
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Dec 21, 2008 18:28 |  #439

brecklundin wrote in post #6921099 (external link)
Very true about the potential for more dust...as for the knowing the aperture ahead of time...yes and no...we sould know the correct aperture really, plus you have shutter speed and ISO to control exposure.

But I agree an adapter ring and a manual lens is the best option over non-conducting tubes. That was why earlier (I think it wwas this thread??) I suggested an adapter and haunting a local thrift shop for faster old lenses for next to nothing...as long as the aperture on a lens changes as ya move the dial it will probably be OK to take a chance with...of course it would have been dropped about 1000-times and be completly out of alignment... ;)

Not necessarily. I have an old Hanimex 28mm which has a stiff focus ring but works fine reversed onto the 100mm giving me 3.5x
No need for a faster lens either as the rear element which is smaller the front becomes the front element when reversed.


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brecklundin
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Dec 21, 2008 18:41 |  #440

Tendy wrote in post #6922620 (external link)
Not necessarily....

not necessarily? in what context? Really I thought I was agreeing with your comment?? Whadidimiss? :D

EDIT: Oh, I get it...as long as the reversed lens can be opened up then you can adjust the aperture with the lens on the body...I get it now. I had it in my head of just using a reversed lens attached to the body...d'oh!!


Real men shoot Pentax because we're born with our own Canon's!!
{Ok...ok, some of use just have a PnS but it it always makes me happy! :D}
Pentax K5, K20D, Three Amigos (Pentax FA 31/1.8 Limited Silver, Pentax FA 43/1.9 Limited Silver, Pentax FA 77/1.8 Limited Silver), Pentax DA 35mm F2.8 Macro Limited, Sigma 24-60/2.8

  
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Tendy
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Dec 22, 2008 19:19 |  #441

brecklundin wrote in post #6922689 (external link)
not necessarily? in what context? Really I thought I was agreeing with your comment?? Whadidimiss? :D

EDIT: Oh, I get it...as long as the reversed lens can be opened up then you can adjust the aperture with the lens on the body...I get it now. I had it in my head of just using a reversed lens attached to the body...d'oh!!

No i meant not necessarily that a secondhand lens will be out of alignment. I bought a used 50mm Pentax lens for £15 and its a corker! Oh and if using a lens reversed onto another lens you should keep the lens thats attached to the body wide open and stop down the reversed lens. If you stop down the body lens you get vignetting.


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brecklundin
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Dec 22, 2008 22:11 |  #442

Tendy wrote in post #6929438 (external link)
No i meant not necessarily that a secondhand lens will be out of alignment.

Good gawd, you are wearing me out...exactly where did I write that as an absolute? In fact I was SUGGESTING to find cheap lenses at what we call Thrift Stores (places which as a rule sell used donated items to fund charity organizations and causes). I did make a JOKE and semi-serious editorial comment, that you are indeed taking a chance though, as you have no idea of the history of the lens...plus logically you cannot return the thing either.

EDIT: ahhh...I see, earlier i wrote "would" when I was thinking COULD have been dropped 1000x...hehehehe...jus​t a bit of a difference I suppose... ;)

...I bought a used 50mm Pentax lens for £15 and its a corker! Oh and if using a lens reversed onto another lens you should keep the lens thats attached to the body wide open and stop down the reversed lens. If you stop down the body lens you get vignetting.

Cool!! thanks for the point about which lens should be opened...I had not thought it through...d'oh!! The other way around causing vignetting does seem obvious once it's pointed out...hehehe...


Real men shoot Pentax because we're born with our own Canon's!!
{Ok...ok, some of use just have a PnS but it it always makes me happy! :D}
Pentax K5, K20D, Three Amigos (Pentax FA 31/1.8 Limited Silver, Pentax FA 43/1.9 Limited Silver, Pentax FA 77/1.8 Limited Silver), Pentax DA 35mm F2.8 Macro Limited, Sigma 24-60/2.8

  
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Brypan
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Dec 22, 2008 23:00 as a reply to  @ brecklundin's post |  #443

Heh, thanks for all of the suggestions. Well, all I have now is one big telephoto lens, which would not be reasonable to use for this purpose, and my kit lens. Eventually, I will be a small 50mm lens, but not for a while. So for now I will just use my method, with just the kit lens reversed on the camera body, hoping the sensor stays clean. I just have one more question, I can't seem to find an adapter ring for a resonable price. Besides ebay, where can I got one. A store like Ritz Camera? Thanks for the help.

(Sorry if I got a little off topic.)


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Raikyn
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Dec 23, 2008 01:57 |  #444

My humble current setup.

My left arm is my ever so flexible bracket. If I want the flash on the left I can hold both flash and lens at the same time. If I want the flash on the right I use my left hand to hold the flash and rest the lens on the left wrist.
Sounds funny, but seems to work well enough atm.

IMAGE: http://img377.imageshack.us/img377/6049/macrosetup800x533uf9.jpg
IMAGE LINK: http://imageshack.us  (external link)



  
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Tendy
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Dec 23, 2008 03:56 as a reply to  @ brecklundin's post |  #445

brecklundin wrote:
Cool!! thanks for the point about which lens should be opened...I had not thought it through...d'oh!! The other way around causing vignetting does seem obvious once it's pointed out...hehehe...

Yea its been a while since I did this and was a bit rusty. The great thing about digital is you can see the results in seconds and then a light goes on. Duh,I need to stop down the reversed lens!


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newb2pro_1day_or_so
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Dec 30, 2008 19:53 as a reply to  @ Tendy's post |  #446

Here's mine

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HTTP response: 404 | MIME changed to 'image/gif' | Byte size: ZERO


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Dan, www.dandexterphotograp​hy.com (external link)
Canon 50D, 50 1.8 II, 100mm macro, Tubes, 430ex, 70-200 2.8 IS, 17-55 2.8 IS, MPE-65 & MT-24ex flash.

  
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Tendy
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Dec 30, 2008 20:08 |  #447

newb2pro_1day_or_so wrote in post #6973134 (external link)
Here's mine


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Click the link (if available) below to see the image in a gallery page.

http://i253.photobucke​t.com …oughglass/Macro​Rig006.jpg (external link)
HTTP response: 404 | MIME changed to 'image/gif' | Byte size: ZERO

Cool,another reverser!


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TheSonofDarwin
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Dec 30, 2008 20:12 |  #448

newb2pro_1day_or_so wrote in post #6973134 (external link)
Here's mine

I use that setup too! Gets a bit much to handle with the flash on a bracket though. Feels like a workout after finishing shooting :lol:


-Justin (external link)

  
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airdima
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Jan 01, 2009 13:21 |  #449

lots of superb setups here :)

Here's mine. got the tubes set a few days ago, gonna try it this weekend. a homemade softbox which works wonderfully. other than that got a big order from B&H that i should get in a month or so (israeli customs sux) which should upgrade my macro rig sufficiently ;)

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
Byte size: ZERO | Content warning: NOT AN IMAGE


IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/png'


pics taken with this setup (minus the extentson tubes) can be seen here
https://photography-on-the.net/forum/showthre​ad.php?t=621839

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Tendy
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Jan 01, 2009 15:27 as a reply to  @ airdima's post |  #450

Thats some softbox!


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