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06/08/2004 09:12:29 AM · #1 |
I just bought the canon 28mm 2.8 and I already have the 50mm 1.8. I'm planning to buy the macro coupler so I can put these face to face for macros, but I'm wondering if the working distance will be so short that I'll just shadow all the shots? I've already put the kit lens with the 50mm and it works good. I've also used the 50mm with a 70-300mm lens which, of course, works awesome.
Does using a 28mm lens face to face with the 50mm lens make the working distance extremely short? (shorter than the kit lens with the 50mm)?
Thanks in advance for your help ... Kris |
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06/08/2004 11:16:13 AM · #2 |
(tapping my computer screen) ... hello? is this thing on?
:) |
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06/08/2004 12:06:39 PM · #3 |
I have a 50mm macro lens and I was wondering how to reverse other lenses with it to increase my magnification too... Jacko?
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06/08/2004 12:08:55 PM · #4 |
| You just need an inexpensive macro coupler ring of the appropriate size. One side will have the same diameter as a filter for your 50mm lens, and the other will have the same diameter as a filter for whatever lens you are attaching it to. |
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06/08/2004 12:10:39 PM · #5 |
Is there any particular type of lens I need to put coupled to it? I have a 28-105mm f/4-5.6 and a 75-300mm f/4-5.6 as well as my macro one.
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06/08/2004 12:25:06 PM · #6 |
Excuse my ignorance, but how does a coupler works? face to face?
:,
Message edited by author 2004-06-08 12:25:26. |
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06/08/2004 12:29:19 PM · #7 |
The "faster" the lens the better. For best results, reverse a 50mm F1.4 or F1.8. If you use a lens with a smaller maximum aperture (higher F number) you will get vignetting (corners will be black). You can always hand hold the two lenses to see how much vignetting you will get, then decide if you want to get a macro coupler.
Originally posted by Konador:
Is there any particular type of lens I need to put coupled to it? I have a 28-105mm f/4-5.6 and a 75-300mm f/4-5.6 as well as my macro one. |
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06/08/2004 12:31:13 PM · #8 |
It's a connection with two "male" ends that screw into the filter threads in front of each lens.
Originally posted by ramevi:
Excuse my ignorance, but how does a coupler works? face to face?
:, |
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06/08/2004 12:54:14 PM · #9 |
Originally posted by Jacko:
It's a connection with two "male" ends that screw into the filter threads in front of each lens.
Originally posted by ramevi:
Excuse my ignorance, but how does a coupler works? face to face?
:, |
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Can someone take a picture of this setup? Is the mount end of the last lense just sitting out there?
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06/08/2004 12:56:13 PM · #10 |
Wow it really does make a lot of difference. I tested just by holding my 28-105mm lens in front and got this result:
Without other lens
With other lens
Obviously it reduced the DoF by quite a lot so it's gonna be hard getting stuff in focus, and the vignette is MAJOR, but now I know it works I'll get a faster lens and trey to set everything up properly :)
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06/08/2004 03:33:27 PM · #11 |
You don't need to pay big bucks for these fast 50mm F1.8 lenses. I paid $6 for an Olympus 50mm F1.8 on Ebay. You just have to make sure they stay wide open (F1.8) when they are off the camera. They Olympus 50mm came wide open.
Could someone tell me if their Canon EF 50mm 1.8 stays open when it is off the camera. I ordered a 50mm F1.4 last week, and I hope it stays wide open.
Originally posted by Konador:
Wow it really does make a lot of difference. I tested just by holding my 28-105mm lens in front and got this result:
Obviously it reduced the DoF by quite a lot so it's gonna be hard getting stuff in focus, and the vignette is MAJOR, but now I know it works I'll get a faster lens and trey to set everything up properly :) |
Message edited by author 2004-06-08 15:35:53.
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06/08/2004 03:45:33 PM · #12 |
Yup, the mount end sticks out "unprotected".
Originally posted by DJLuba:
Originally posted by Jacko:
It's a connection with two "male" ends that screw into the filter threads in front of each lens.
Originally posted by ramevi:
Excuse my ignorance, but how does a coupler works? face to face?
:, |
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Can someone take a picture of this setup? Is the mount end of the last lense just sitting out there? |
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06/08/2004 04:02:50 PM · #13 |
Jacko - Sweet -- Thanks for posting that pic!
This makes sense to me now. I wasn't quit sure if we were letting the end just hang out there. Obviously, you need to be extra careful when doing this, and it should be done indoors I'm guessing.
Very cool -- I'm going to try this. |
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06/08/2004 05:01:23 PM · #14 |
Originally posted by Jacko:
Could someone tell me if their Canon EF 50mm 1.8 stays open when it is off the camera. I ordered a 50mm F1.4 last week, and I hope it stays wide open. |
Yup, it does. Canon EF lenses by default are always "wide open" so that the viewfinder and metering "stuff" gets as bright an image as possible. The lens is only stopped-down when taking a picture or when you press the DOF preview button. |
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06/08/2004 05:02:09 PM · #15 |
Originally posted by DJLuba:
Jacko - Sweet -- Thanks for posting that pic!
This makes sense to me now. I wasn't quit sure if we were letting the end just hang out there. Obviously, you need to be extra careful when doing this, and it should be done indoors I'm guessing.
Very cool -- I'm going to try this. |
if the 50mm is inexpensive like the one Jacko is talking about you don't need to worry about the end hanging free. also, it won't fit normally anyway.
also just to add in another thing to think about. the longer the focal length of the lens attached to the camera, the greater the magnification. such as a 300mm with a 50mm reversed is going to have a higher magnification than a 100mm with a 50mm reversed. however, the key here is that not everyone has a fast telephoto lens. so then you get your vignetting problems again. |
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06/08/2004 05:03:38 PM · #16 |
Originally posted by DJLuba:
and it should be done indoors I'm guessing. |
I use my reversed 50/1.4 outside with no worries. After all, it is the cheapest lens in my bag! =] In all seriousness, you just have to be careful. I have several portfolio pics and a blue-ribbon winning challenge entry that were done outside using the Canon 100mm/2.8 Macro and the reversed 50mm/1.4 combo... |
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06/08/2004 06:13:00 PM · #17 |
Originally posted by nborton:
Originally posted by DJLuba:
Jacko - Sweet -- Thanks for posting that pic!
This makes sense to me now. I wasn't quit sure if we were letting the end just hang out there. Obviously, you need to be extra careful when doing this, and it should be done indoors I'm guessing.
Very cool -- I'm going to try this. |
if the 50mm is inexpensive like the one Jacko is talking about you don't need to worry about the end hanging free. also, it won't fit normally anyway.
also just to add in another thing to think about. the longer the focal length of the lens attached to the camera, the greater the magnification. such as a 300mm with a 50mm reversed is going to have a higher magnification than a 100mm with a 50mm reversed. however, the key here is that not everyone has a fast telephoto lens. so then you get your vignetting problems again. |
I actually got more magnification with my 28-105 than my 75-300. Both were at their widest angle. Well, actually I could get the focus from further away from the subject, but it didn't look as big in the final photo.
Message edited by author 2004-06-08 18:13:50.
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06/08/2004 08:18:50 PM · #18 |
A rough calculation of magnification using reversed lenses:
Main lens
------------------ (divided by)
reversed lens
So if you have a 100mm lens attached to your camera and a 50mm reversed in front of it you'll get a 2X magnification.
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06/16/2004 10:48:17 PM · #19 |
This is my first go at Macro. After seeing Jacko's setup, I order a Step Down Ring and a 52mm Coupler.
Talk about Shallow Depth of Field. I need to play around some more. This is "0" on my cell phone. |
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