M5POST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   M5POST - BMW M5 Forum > BIMMERPOST Universal Forums > Off-Topic Discussions Board > Photography/Videography

Post Reply
 
Thread Tools Search this Thread
      06-15-2012, 08:34 AM   #3433
dcstep
Brigadier General
 
Drives: '09 Cpe Silverstone FR 6MT
Join Date: Nov 2008
Location: Colorado

Posts: 4,810
iTrader: (0)

Garage List
2009 M3  [4.00]
Quote:
Originally Posted by rodi View Post
bronica made some extension tubes, but i remember reading about some limitations, as well as the final affected aperture. does it alter anything besides focus distance? i really like this method, though. cheap and quick and small, we'll see what happens whenever i decide to shoot into the sun.
Depending on the length of the tube, you lose some light, like an f-stop for a 25mm tube on a 35mm camera. With your MF cameras, I don't know the light loss, but you could probably find out in one of the MF forums over at some place like photo.net.

I find my ETs easier to use with my longer lenses. On my 500mm, cutting the minimum focus distance from 12-ft to 8-ft is huge and then I add my TC, which has no impact on MFD, and I've got a bee filling the viewfinder at 8-ft. I use it a lot with my 70-200mm also. I'm shooting at around f/8 when all that stuff is piled on an f/4 lens.

I saw some amazing macros taken with a 65mm macro lens, two ET and flash. The guy specialized in macros and had a complex lighting scheme, but the results were stunning.

I've got both ETs and diopetor lenses and like them both. ETs are a cheap solution on dslr, but perhaps not so much for MF.

Dave
__________________
dcstep is offline   United_States
0
Reply With Quote
      06-15-2012, 08:44 AM   #3434
Chewy734
Major General
 
Drives: 2006 BMW 330i ZPP, ZSP
Join Date: Dec 2008
Location: Minneapolis, MN

Posts: 6,759
iTrader: (15)

Quote:
Originally Posted by dcstep View Post
I saw some amazing macros taken with a 65mm macro lens, two ET and flash. The guy specialized in macros and had a complex lighting scheme, but the results were stunning.
Got a link, Dave?
__________________

Currently for sale: N/A
Chewy734 is offline   United_States
0
Reply With Quote
      06-15-2012, 09:01 AM   #3435
dcstep
Brigadier General
 
Drives: '09 Cpe Silverstone FR 6MT
Join Date: Nov 2008
Location: Colorado

Posts: 4,810
iTrader: (0)

Garage List
2009 M3  [4.00]
Quote:
Originally Posted by Chewy734 View Post
Got a link, Dave?
This isn't the guy I was thinking of, but this guy gets equally amazing results using a reversed enlarger lens:

http://www.flickr.com/photos/jingles...7623492127788/

I'll try to find the guy using Canon's 65mm macro lens, combined with ETs and a special lighting setup.

Dave
__________________
dcstep is offline   United_States
0
Reply With Quote
      06-15-2012, 12:17 PM   #3436
rodi
. . .
 
Drives: your FACE!
Join Date: Oct 2008
Location: Atlanta proper

Posts: 2,400
iTrader: (-1)

Quote:
Originally Posted by dcstep View Post
Depending on the length of the tube, you lose some light, like an f-stop for a 25mm tube on a 35mm camera. With your MF cameras, I don't know the light loss, but you could probably find out in one of the MF forums over at some place like photo.net.

I find my ETs easier to use with my longer lenses. On my 500mm, cutting the minimum focus distance from 12-ft to 8-ft is huge and then I add my TC, which has no impact on MFD, and I've got a bee filling the viewfinder at 8-ft. I use it a lot with my 70-200mm also. I'm shooting at around f/8 when all that stuff is piled on an f/4 lens.

I saw some amazing macros taken with a 65mm macro lens, two ET and flash. The guy specialized in macros and had a complex lighting scheme, but the results were stunning.

I've got both ETs and diopetor lenses and like them both. ETs are a cheap solution on dslr, but perhaps not so much for MF.

Dave
the Bronica 18mm extension tube needs 1.7 to 1.8 times the light for an equal exposure on the 80 and 150mm lenses, respectively. :\
sounds like a lot of light loss. but i don't plan on doing any macro - just closer portraits.
so my set as +1, +2 and +4 diopters. the +2 diopter converts the 80mm's .8m minimum distance into a staggering .26m. the depth of field goes out the window, and with the wider frame of the 6x6 format, things get really intimate.
__________________
2009 135i | space grey | sport | navi | hifi | heated
dinan stage 2 software | bmw performance exhaust
kw v2 | hotchkis front sway | vmr v710

rodi is offline  
0
Reply With Quote
      06-15-2012, 12:19 PM   #3437
The1
Major General
 
Drives: white 135
Join Date: Aug 2010
Location: KW ontario/vancouver temporarily

Posts: 5,127
iTrader: (0)

Quote:
Originally Posted by MaximusJ View Post
But my extension tubes make the DOF freaking thin.

I'm pretty sure they're all the same, but there's something I must do wrong when using them. As soon as I use a 20mm combination or more with my 50mm, my lens almost have to touch the freaking bug before getting slightly in focus. And I say slightly because the DOF is about a "half-an-hairline" thin.
the longer you make the extension tube, the closer you have to be. if you stick the smallest one on with the 50mm, it will be likely the most usable.

if you put too large of an extension tube, you can actually make it so you have to actually touch the object to the lens just to get the focus point.
The1 is offline   Canada
0
Reply With Quote
      06-15-2012, 12:21 PM   #3438
The1
Major General
 
Drives: white 135
Join Date: Aug 2010
Location: KW ontario/vancouver temporarily

Posts: 5,127
iTrader: (0)

Quote:
Originally Posted by rodi View Post
the Bronica 18mm extension tube needs 1.7 to 1.8 times the light for an equal exposure on the 80 and 150mm lenses, respectively. :\
sounds like a lot of light loss. but i don't plan on doing any macro - just closer portraits.
your ETs don't have lenses in them do they? I haven't experienced a loss of light.

and yes, with my longer lensees, if I use the small extension tubes, I can bring the subject slightly closer without turning the shots into macros.
The1 is offline   Canada
0
Reply With Quote
      06-15-2012, 01:22 PM   #3439
dcstep
Brigadier General
 
Drives: '09 Cpe Silverstone FR 6MT
Join Date: Nov 2008
Location: Colorado

Posts: 4,810
iTrader: (0)

Garage List
2009 M3  [4.00]
Quote:
Originally Posted by The1 View Post
your ETs don't have lenses in them do they? I haven't experienced a loss of light.
I'm pretty sure you do. The f-stop won't change, but try a manual setting with and without the ET and notice the EV reading. I think you'll see the EV drop. It's not the optics, but the distance of the rear element from the sensor.
__________________
dcstep is offline   United_States
0
Reply With Quote
      06-15-2012, 06:18 PM   #3440
Weebl
Weebl wobbles but eats Pie
 
Drives: 2008 335i, 2000 740i
Join Date: Mar 2011
Location: SF Bay Area

Posts: 1,513
iTrader: (0)

Quote:
Originally Posted by dcstep View Post
This isn't the guy I was thinking of, but this guy gets equally amazing results using a reversed enlarger lens:

http://www.flickr.com/photos/jingles...7623492127788/


Dave
I have a old Zeiss enlarger/copy lens..... gives me an idea. Thanks.
__________________
Kevingoto.smugmug.com
2000 740i-Annalisa and 2008 335i-Weebl. Weebl may wobble but has DTC
Weebl is offline  
0
Reply With Quote
      06-15-2012, 11:05 PM   #3441
MaximusJ
Colonel
 
MaximusJ's Avatar
 
Drives: 325i 2006
Join Date: Jul 2010
Location: Quebec, Canada

Posts: 2,122
iTrader: (19)

Garage List
'06 E90  [3.72]
Quote:
Originally Posted by The1
the longer you make the extension tube, the closer you have to be. if you stick the smallest one on with the 50mm, it will be likely the most usable.

if you put too large of an extension tube, you can actually make it so you have to actually touch the object to the lens just to get the focus point.
Yep that's exactly what im experiencing. I should try on longer lenses.

Also; i should try with my 105mm.
MaximusJ is offline   Canada
0
Reply With Quote
      06-17-2012, 10:00 PM   #3442
UdubBadger
Banned
 
Drives: '04 330i ZHP
Join Date: Dec 2007
Location: Chicago Burbs

Posts: 24,716
iTrader: (22)

Garage List
2004 BMW 330i ZHP  [4.75]
2011 135i  [3.73]
2008 328xi  [4.38]
Canon guys: talk to me about AF lens microadjustments

had a buddy borrow my 16-35 and he said it was back focusing on him all week. Should I be doing microadjustments on all my lenses?

How is it done?
UdubBadger is offline   No_Country
0
Reply With Quote
      06-17-2012, 10:02 PM   #3443
gary88
Ikea enthusiast
 
gary88's Avatar
 
Drives: '07 E92 335i
Join Date: Dec 2009
Location: Chicago, IL

Posts: 7,975
iTrader: (3)

Garage List
2007 E92 335i  [3.91]
Only one of my lenses has been perfect out of the box, all others saw some benefit from MA.
__________________

garyhebdingjr.com | flickr | Instagram@garyhebding
gary88 is offline   United_States
0
Reply With Quote
      06-17-2012, 11:01 PM   #3444
M_Six
Free Thinker
 
M_Six's Avatar
 
Drives: 2012 MB C300 4matic
Join Date: Jan 2009
Location: Foothills of Mt Level

Posts: 4,872
iTrader: (0)

Garage List
I've read some good things about Reikan Focal software. I'm thinking of trying this out myself. I have noticed a couple of my lenses seem to miss the focus point by just a bit. Maybe some MA will help.

Having said that, keep in mind that it is camera specific. A lens that front focuses on one camera may be fine on another.
__________________
Mark
Randomography
Flickr

"The $0.99 menu was put on this Earth for a good damn reason." -Weebl
M_Six is offline   United_States
0
Reply With Quote
      06-18-2012, 12:14 AM   #3445
Weebl
Weebl wobbles but eats Pie
 
Drives: 2008 335i, 2000 740i
Join Date: Mar 2011
Location: SF Bay Area

Posts: 1,513
iTrader: (0)

Quote:
Originally Posted by UdubBadger View Post
Canon guys: talk to me about AF lens microadjustments

had a buddy borrow my 16-35 and he said it was back focusing on him all week. Should I be doing microadjustments on all my lenses?

How is it done?
When Chewy comes by to party with you, focus on his nose tip at wide open aperture. That will tell you if your lens front/back focuses. Try it at a longer distance, like when you take pictures of the school kids from your creeper van.
This will give you an overall picture of the focusing compensation that you need. My 40D front focuses like anything with any lens on it. I cannot adjust this and would have to send it to Canon to possibly fix it.
Next. and it will tell you how to MA your camera.
What Mark said about the MA, it is specific to the camera and not the lens.

at least this is my understanding of how it works.
__________________
Kevingoto.smugmug.com
2000 740i-Annalisa and 2008 335i-Weebl. Weebl may wobble but has DTC
Weebl is offline  
0
Reply With Quote
      06-18-2012, 07:02 AM   #3446
Chewy734
Major General
 
Drives: 2006 BMW 330i ZPP, ZSP
Join Date: Dec 2008
Location: Minneapolis, MN

Posts: 6,759
iTrader: (15)

Quote:
Originally Posted by UdubBadger View Post
Canon guys: talk to me about AF lens microadjustments
Here you go, you pasty white bastard

AF micro-adjustment for Canon EOS DSLRs
__________________

Currently for sale: N/A
Chewy734 is offline   United_States
0
Reply With Quote
      06-18-2012, 07:58 AM   #3447
Chewy734
Major General
 
Drives: 2006 BMW 330i ZPP, ZSP
Join Date: Dec 2008
Location: Minneapolis, MN

Posts: 6,759
iTrader: (15)

out of curiosity, do most of you guys shoot with back button AF?
__________________

Currently for sale: N/A
Chewy734 is offline   United_States
0
Reply With Quote
      06-18-2012, 09:02 AM   #3448
dcstep
Brigadier General
 
Drives: '09 Cpe Silverstone FR 6MT
Join Date: Nov 2008
Location: Colorado

Posts: 4,810
iTrader: (0)

Garage List
2009 M3  [4.00]
Quote:
Originally Posted by Chewy734 View Post
out of curiosity, do most of you guys shoot with back button AF?
Not me. I use the back button to lock AF, since I use single-point AF a lot. I either move the AF point or focus on the eye and then hit the lock.

Dave
__________________
dcstep is offline   United_States
0
Reply With Quote
      06-18-2012, 09:13 AM   #3449
SS32
Major
 
SS32's Avatar
 
Drives: 2008 M3
Join Date: May 2007
Location: Raleigh, NC

Posts: 1,431
iTrader: (0)

edit: Wrong thread, ignore this

Last edited by SS32; 06-18-2012 at 02:02 PM.
SS32 is offline  
0
Reply With Quote
      06-18-2012, 09:27 AM   #3450
M_Six
Free Thinker
 
M_Six's Avatar
 
Drives: 2012 MB C300 4matic
Join Date: Jan 2009
Location: Foothills of Mt Level

Posts: 4,872
iTrader: (0)

Garage List
Well, since he said to ignore it, I guess I will.
__________________
Mark
Randomography
Flickr

"The $0.99 menu was put on this Earth for a good damn reason." -Weebl

Last edited by M_Six; 06-18-2012 at 04:37 PM.
M_Six is offline   United_States
0
Reply With Quote
      06-18-2012, 09:32 AM   #3451
gary88
Ikea enthusiast
 
gary88's Avatar
 
Drives: '07 E92 335i
Join Date: Dec 2009
Location: Chicago, IL

Posts: 7,975
iTrader: (3)

Garage List
2007 E92 335i  [3.91]
Quote:
Originally Posted by Chewy734 View Post
out of curiosity, do most of you guys shoot with back button AF?
One of the first things I enabled on my camera
__________________

garyhebdingjr.com | flickr | Instagram@garyhebding
gary88 is offline   United_States
0
Reply With Quote
      06-18-2012, 11:52 AM   #3452
rodi
. . .
 
Drives: your FACE!
Join Date: Oct 2008
Location: Atlanta proper

Posts: 2,400
iTrader: (-1)

Quote:
Originally Posted by Chewy734 View Post
out of curiosity, do most of you guys shoot with back button AF?
i use the af-on button strictly to engage auto-focus. my shutter serves one purpose: releasing the shutter.
__________________
2009 135i | space grey | sport | navi | hifi | heated
dinan stage 2 software | bmw performance exhaust
kw v2 | hotchkis front sway | vmr v710

rodi is offline  
0
Reply With Quote
      06-18-2012, 06:46 PM   #3453
MaximusJ
Colonel
 
MaximusJ's Avatar
 
Drives: 325i 2006
Join Date: Jul 2010
Location: Quebec, Canada

Posts: 2,122
iTrader: (19)

Garage List
'06 E90  [3.72]
Quote:
Originally Posted by Chewy734 View Post
out of curiosity, do most of you guys shoot with back button AF?
Yep, The half a second you lose on focusing while hitting the shutter can be the half second that makes me miss the perfect timing. I know I could set it as shutter release priority, but I'm really comfortable that way.

Personal taste I guess. I wouldnt go back to shutter-focus.
MaximusJ is offline   Canada
0
Reply With Quote
      06-18-2012, 07:15 PM   #3454
dcstep
Brigadier General
 
Drives: '09 Cpe Silverstone FR 6MT
Join Date: Nov 2008
Location: Colorado

Posts: 4,810
iTrader: (0)

Garage List
2009 M3  [4.00]
Quote:
Originally Posted by MaximusJ View Post
Yep, The half a second you lose on focusing while hitting the shutter can be the half second that makes me miss the perfect timing. I know I could set it as shutter release priority, but I'm really comfortable that way.

Personal taste I guess. I wouldnt go back to shutter-focus.
What are you talking about, man?

The AF time is the same no matter which button you push.

It's really only a personal preference issue, at least with Canon's prosumer bodies.

I shot around 2,000 shots last weekend with my 7D and can't remember waiting on the AF because of which button I was pushing. When I switched from a subject 12-feet away to one 50-yards away, I had to wait, but that wasn't due to the button pushed.

No waiting allowed:


Stay away, this is my perch! No, it's mine!!! by dcstep, on Flickr
__________________
dcstep is offline   United_States
0
Reply With Quote
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 06:46 AM.




m5post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST