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[Official] OCN Camera Thread - Page 982

post #9811 of 29551
Theres a little switch that tells the camera it has a lens on and if it doesn't have a chip it won't meter. I remember with the D40, it wouldn't take a shot either except on manual. If you really need it, you can chip it for 60 bucks but thats stupid.
post #9812 of 29551
Thread Starter 
Quote:
Originally Posted by theCanadian View Post
I see. So a 50mm it is.

Edit: So, Sigma 50mm f/2.8 No AF Will have to save up money for it.
Or A BGN Tamron 90mm f/2.8 for $250
Or this Nikon 35-135 (does it autofocus on 3100?)

What do you think?

This manual focus 55, looks nice too.

The Tamron looks nice, but I don't know about its BGN condition. Can it be returned or does KEH sell BGN as is?

I would probably pass on the Sigma due to the short FL and Sigma's QC.

The 35-135 isn't a macro lens, so I'd definitely pass on that.

The Nikon 55 has too short of an FL too.

Quote:
Originally Posted by theCanadian View Post
I don't understand how a lens wouldn't meter. I understand modern lenses have chips in them that talk to the camera, but is there no light meter in a D3100? That's absurd?

The reason I want a close focusing lens is a comfort issue. Whether or not it's a true macro lens doesn't bother me all that much.
So are you actually looking for a 1:1 macro lens, or do you just want something with a closer MFD? Remember that you can reduce the MFD for any lens just by installing extension tubes. Kenko makes decent ones.
Edited by GoneTomorrow - 12/29/10 at 9:22am
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post #9813 of 29551
Quote:
Originally Posted by GoneTomorrow View Post
So are you actually looking for a 1:1 macro lens, or do you just want something with a closer MFD? Remember that you can reduce the MFD for any lens just by installing extension tubes. Kenko makes decent ones.
I think he has the 18-55 VR which won't have aperture control with tubes, if it did I would totally recommend those over these lenses. At least you have Live View so its not THAT bad.
post #9814 of 29551
Quote:
Originally Posted by GoneTomorrow View Post
So are you actually looking for a 1:1 macro lens, or do you just want something with a closer MFD? Remember that you can reduce the MFD for any lens just by installing extension tubes. Kenko makes decent ones.
I guess that begs the question, how is a 1:1 useful over a standard lens? I've done fine with my 35-105 so far, which I've had a look at, and it actually focuses about 6 inches from the film plane, which is extremely useful to me, but it's only 1:3.5.
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post #9815 of 29551
Thread Starter 
Quote:
Originally Posted by theCanadian View Post
I guess that begs the question, how is a 1:1 useful over a standard lens? I've done fine with my 35-105 so far, which I've had a look at, and it actually focuses about 6 inches from the film plane, which is extremely useful to me, but it's only 1:3.5.
Well, it isn't very useful in terms of versatility, but 1:1 is used when you want to get seriously close. At 1:1, the subject is the same size as it is being projected onto the medium, which results in a substantial magnification.

Here's a 1:1 shot I took a while agoCanon 60mm/2.8), note the dime for scale:

(
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post #9816 of 29551
Longer focal length in a macro lens is a good thing imho. First off, there are lots of potential subjects that you don't want to get real close to. Bees, wasps, snakes, you get the idea. I have the nikkor 200mm f/4 and love it. As far as minimum apeture is concerned, you'll be shooting at >f/8 and more like f/16 anyway to make up for the shallow dof inherent at 1:1. If you have auto iso, you can shoot in apeture mode, set min ss to something reasonable and let iso run.

GT, I know QC is a big concern with Sigma, but alot of folks at the Nikon Cafe' swear by the Sigma 150mm macro. This appears to be one lens that Sigma got right.

I haven't used extension tubes but have seen lots of great images taken with them.
    
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post #9817 of 29551
also a longer focal length will allow u to be a bit farther away so u arent blocking any light
 
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post #9818 of 29551
How did i not jump on this thread sooner! Post me up dawg! Camera Specs in Sig (Photography)
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post #9819 of 29551
Quote:
Originally Posted by iandroo888 View Post
also a longer focal length will allow u to be a bit farther away so u arent blocking any light
I almost always use fill flash, even on sunny days. faster ss is a good thing for hand held macro photography.
    
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post #9820 of 29551
Alright, I hear you guys on the longer FL. While I enjoy photography immensely, I don't really get a lot of shutter time, and most of my early experience with macro/closeup type shots has been pretty enjoyable with the shorter FL and larger apertures. But as time goes on (recently) I've seen the need for smaller apertures and longer FL's.

I just happen to be more comfortable with the shorter FL's is all.
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