Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Canon EOS dSLR

Reply
 
Thread Tools Search this Thread
Old Apr 9, 2005, 1:00 PM   #1
Junior Member
 
Join Date: Apr 2005
Posts: 3
Default

So I have my 20D, but I need a really kick ass macro lens for it. Price range of about 200 US to 800 US. Oh and yeah this may make me feel like an idiot, but I gotta ask. What does the 1:1 mean etc. andwhat determines the closest and most crisp image, be it the focal number (what focal number means what), or this 1:1 notation. Let me know whatcha think! Thanks.
Chronophobia is offline   Reply With Quote
Sponsored Links
Old Apr 9, 2005, 1:56 PM   #2
Senior Member
 
Join Date: Dec 2002
Posts: 5,803
Default

It depends on what macro subjects you want to shoot.

If you're shooting living things (bugs, butterflies,...) then you need more focal length. You don't want to scare you subject. Then you probably want the Sigma 180mm f3.5 macro. Its a very good macro lens. Not "the best" (the Canon at that focal length is slightly better) but its also about $600 more!

If you can got for "less" focal length (say you're photographing stamps, coins, jewlery) then both Canon and sigma make lenses around 80mm-150mm that are cheaper. Sigma's quality has improved in the last several years so I'd seriously consider them. Not "the best" but very good.

As to the 1:1, it refers to how much magnification you get. I think the larger the second number the more magnification. Maybe someone else can tell you more.

Eric
eric s is offline   Reply With Quote
Old Apr 9, 2005, 9:40 PM   #3
djb
Senior Member
 
Join Date: Apr 2003
Posts: 2,289
Default

The larger the first number the more the magnification.

dennis
djb is offline   Reply With Quote
Old Apr 10, 2005, 9:04 AM   #4
Senior Member
 
surfnron's Avatar
 
Join Date: Jun 2003
Posts: 578
Default

1:1 is lifesize on the sensor. So something 22cm, (or something the size of whatever sensor you have), will cover the length the sensor. 1:2 will fill half the sensor.

Ron
surfnron is offline   Reply With Quote
Old Apr 10, 2005, 9:30 AM   #5
Junior Member
 
Join Date: Jan 2005
Posts: 7
Default

I use the Tamron 180 Macro Di and I think it's the best Macro lens you can buy. It gives you plenty of distance frombetween the subject and the lens to provide better lighting and it's razor sharp. It's drawback is it's large and heavy but if you are really serious about macro photography the 180 is the way to go.

It also doubles as an excellent 180 prime telephoto. It's the sharpest lens I own.



Glenn


GlennD is offline   Reply With Quote
Old Jun 23, 2005, 2:12 PM   #6
Junior Member
 
Join Date: Apr 2005
Posts: 3
Default

Thanks for all the replies, the 180mm Sigma seems to be a good choice. Anybody have links to a sample of what it can do?
Chronophobia is offline   Reply With Quote
Old Jun 23, 2005, 8:43 PM   #7
Senior Member
 
surfnron's Avatar
 
Join Date: Jun 2003
Posts: 578
Default

One point to consider. The longer the lens, (150mm or 180mm), the harder it is to hand hold. I have the Sigma 150 macro. It's razor sharp, but a tripod is almost a must because, at 1:1, it's difficult to prevent motion blur handheld.

Ron
surfnron is offline   Reply With Quote
Old Jun 28, 2005, 1:08 PM   #8
Senior Member
 
Join Date: Sep 2003
Posts: 229
Default

I use the EFS 60mm. Very sharp and a great lens. However, you have to get up close to subjects. Live/moving things are skittish. If you what to do flying insects etc, you'll need a longer macro. 180mm is probably a good choice. I don't have one that length but I am considering getting one.
Ctrack is offline   Reply With Quote
Old Jun 28, 2005, 7:37 PM   #9
Senior Member
 
bigboyhf's Avatar
 
Join Date: Mar 2005
Posts: 165
Default

While we are on the subject, what is it that makes a dedicatedmacro lens better than a regular lens that has macro capability??

H
bigboyhf is offline   Reply With Quote
Old Jun 29, 2005, 10:14 AM   #10
Senior Member
 
Join Date: Sep 2003
Posts: 229
Default

Dedicated macro lenses are usually 1:1. Non dedicated lenses with macroare usually .5 or .25. The focus close but don't give the 1:1 ratio.

As I understand it.
Ctrack is offline   Reply With Quote
 
Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 2:06 AM.