sigma 105mm macro?

scottyboy · 03-26-2011, 11:43 AM

i've read about true 1 to 1 macro.on the tube of my lens, sigma 105mm macro there is a scale ,white for auto ,yellow for manual. if in manual to get true 1 to 1 do i turn the lens to1:1 and then move in or out to focus or do the #S mean something else. 1:1 ,1:1.2, 1:1.5, 1:2, 1:3, 1:4 are the#s listed .again ,thanks for all the help, scott

Attached Images

Last edited by scottyboy; 03-26-2011 at 12:15 PM.

**ashurbanipal** · 03-26-2011, 01:55 PM

I have this lens, and you've got it right: if you want to use a specific magnification ratio you'd set the lens to manual focus and adjust it to the desired ratio. To focus, you move the camera & lens closer/farther away from your subject. When shooting a static subject I find it quicker to set the camera on a tripod and move the subject to focus--but then I'm also too cheap to buy/make a focus rail on which to mount the camera. For auto-focus I only find the lens markings useful after I've taken the picture. Hope that helps!

scottyboy · 03-26-2011, 02:24 PM

Originally posted by ashurbanipal

I have this lens, and you've got it right: if you want to use a specific magnification ratio you'd set the lens to manual focus and adjust it to the desired ratio. To focus, you move the camera & lens closer/farther away from your subject. When shooting a static subject I find it quicker to set the camera on a tripod and move the subject to focus--but then I'm also too cheap to buy/make a focus rail on which to mount the camera. For auto-focus I only find the lens markings useful after I've taken the picture. Hope that helps!

thanks ,its been on my mind but didn't want to seem like a total idiot.finally sucked it up and asked.didn't know they made a rail but can see where it would come in handy.

**ashurbanipal** · 03-27-2011, 06:42 PM

Originally posted by scottyboy

thanks ,its been on my mind but didn't want to seem like a total idiot.finally sucked it up and asked.didn't know they made a rail but can see where it would come in handy.

I've certainly been a total idiot on many occasions--to my mind, I'd rather be an idiot it on the forum than when I'm out shooting! (Not to imply that I've managed to avoid the latter, of course!) If you plan on doing much macro shooting you might check out the Macro group on this site--there's some helpful and interesting stuff there from members far more knowledgeable than I am.

littledrawe · 03-27-2011, 09:16 PM

I know I can check the reviews but while we have your attention... what are your impressions of this lens??

scottyboy · 03-28-2011, 03:01 AM

Originally posted by littledrawe

I know I can check the reviews but while we have your attention... what are your impressions of this lens??

i think its a quality item ,metal, heavy.i'm new to slr/dslr but i say very nice lens.mine is EX MODEL.NOT THE NEWER MODEL.Haven't made it out much as winter is still here but i did get this a couple of weeks ago.heavy is 1 thing i read some people don't care for.

03-26-2011, 11:43 AM	#1
scottyboy Junior Member Join Date: Dec 2010 Location: ohio Photos: Albums Posts: 27	sigma 105mm macro? i've read about true 1 to 1 macro.on the tube of my lens, sigma 105mm macro there is a scale ,white for auto ,yellow for manual. if in manual to get true 1 to 1 do i turn the lens to1:1 and then move in or out to focus or do the #S mean something else. 1:1 ,1:1.2, 1:1.5, 1:2, 1:3, 1:4 are the#s listed .again ,thanks for all the help, scott Attached Images Last edited by scottyboy; 03-26-2011 at 12:15 PM.

03-28-2011, 03:01 AM	#6
scottyboy Junior Member Join Date: Dec 2010 Location: ohio Photos: Albums Posts: 27 Original Poster	Originally posted by littledrawe I know I can check the reviews but while we have your attention... what are your impressions of this lens?? i think its a quality item ,metal, heavy.i'm new to slr/dslr but i say very nice lens.mine is EX MODEL.NOT THE NEWER MODEL.Haven't made it out much as winter is still here but i did get this a couple of weeks ago.heavy is 1 thing i read some people don't care for. Attached Images Last edited by scottyboy; 03-28-2011 at 03:20 AM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
For Sale - Sold: Sigma 105mm f2.8 macro + EM-140 DG macro flash (Worldwide)	EricR	Sold Items	2	03-20-2011 04:16 AM
Wanted - Acquired: Tamron 90mm Macro or Sigma 105mm Macro (AUS)	Pixley	Sold Items	2	09-28-2010 08:32 PM
Sigma 105mm EX DG macro?	Blue	Ask B&H Photo!	2	09-15-2010 08:04 AM
For Sale - Sold: Sigma 17-70mm, Sigma 10-20mm, Vivitar S1 105mm 2.5 Macro 1:1	jjdgti	Sold Items	17	08-02-2010 11:05 AM
K-7 and Sigma 105mm EX macro (non DG)	Althor33	Pentax DSLR Discussion	10	06-18-2010 10:16 AM

03-26-2011, 01:55 PM	#2
ashurbanipal Loyal Site Supporter Join Date: Nov 2008 Location: Lincoln, Nebraska Photos: Gallery \| Albums Posts: 515	I have this lens, and you've got it right: if you want to use a specific magnification ratio you'd set the lens to manual focus and adjust it to the desired ratio. To focus, you move the camera & lens closer/farther away from your subject. When shooting a static subject I find it quicker to set the camera on a tripod and move the subject to focus--but then I'm also too cheap to buy/make a focus rail on which to mount the camera. For auto-focus I only find the lens markings useful after I've taken the picture. Hope that helps!

03-26-2011, 02:24 PM	#3
scottyboy Junior Member Join Date: Dec 2010 Location: ohio Photos: Albums Posts: 27 Original Poster	Originally posted by ashurbanipal I have this lens, and you've got it right: if you want to use a specific magnification ratio you'd set the lens to manual focus and adjust it to the desired ratio. To focus, you move the camera & lens closer/farther away from your subject. When shooting a static subject I find it quicker to set the camera on a tripod and move the subject to focus--but then I'm also too cheap to buy/make a focus rail on which to mount the camera. For auto-focus I only find the lens markings useful after I've taken the picture. Hope that helps! thanks ,its been on my mind but didn't want to seem like a total idiot.finally sucked it up and asked.didn't know they made a rail but can see where it would come in handy.

03-27-2011, 06:42 PM	#4
ashurbanipal Loyal Site Supporter Join Date: Nov 2008 Location: Lincoln, Nebraska Photos: Gallery \| Albums Posts: 515	Originally posted by scottyboy thanks ,its been on my mind but didn't want to seem like a total idiot.finally sucked it up and asked.didn't know they made a rail but can see where it would come in handy. I've certainly been a total idiot on many occasions--to my mind, I'd rather be an idiot it on the forum than when I'm out shooting! (Not to imply that I've managed to avoid the latter, of course!) If you plan on doing much macro shooting you might check out the Macro group on this site--there's some helpful and interesting stuff there from members far more knowledgeable than I am.

03-27-2011, 09:16 PM	#5
littledrawe Veteran Member Join Date: Jan 2010 Location: Red Rock Photos: Gallery \| Albums Posts: 2,514	I know I can check the reviews but while we have your attention... what are your impressions of this lens??