December 20, 2014, 01:42:46 AM

Author Topic: Why some lens says "macro"?  (Read 5803 times)

Don Haines

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Re: Why some lens says "macro"?
« Reply #15 on: March 21, 2013, 11:13:08 PM »
The 8-15mm fisheye zoom achieves 0.39x mag!
Wouldn't a fisheye lense be a MACKEREL lens?

Seriously though...some call a "true Macro" lens as 1:1 or better... some say .5X.... there is no standard.
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Re: Why some lens says "macro"?
« Reply #15 on: March 21, 2013, 11:13:08 PM »

AJ

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Re: Why some lens says "macro"?
« Reply #16 on: March 22, 2013, 01:32:00 PM »
I'm surprised the 40/2.8 says macro.  Usually when a prime says macro it actually does 1:1 or better, and has floating elements that keep the image sharp at close focusing distances. 

On zooms, "macro" often just means "close focusing"


mrsfotografie

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Re: Why some lens says "macro"?
« Reply #17 on: March 22, 2013, 01:51:27 PM »
Just to add to the confusion...some wide-angle lenses that can focus very closely, such as the TS-E 24 II and the 8-15 fisheye, can make for much more interesting "macro" lenses than a true, dedicated macro lens. They let you get super-close to your subject for an interesting perspective and generally do a great job at including enough of the surroundings to put it in context.

The Sigma 20mm f/1.8 is king at this although it has a macro ratio of 1:4 ;)

Edit: due to its MFD of 0.2 m.
« Last Edit: March 22, 2013, 01:59:16 PM by mrsfotografie »
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BrettS

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Re: Why some lens says "macro"?
« Reply #18 on: March 22, 2013, 04:07:57 PM »
But, to me, an actual macro lens [...] typically has a focal length of 65 mm....

Hey mate

Curious why you add that caveat?

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Re: Why some lens says "macro"?
« Reply #19 on: March 22, 2013, 04:42:35 PM »
Just to add to the confusion...some wide-angle lenses that can focus very closely, such as the TS-E 24 II and the 8-15 fisheye, can make for much more interesting "macro" lenses than a true, dedicated macro lens. They let you get super-close to your subject for an interesting perspective and generally do a great job at including enough of the surroundings to put it in context.

The Sigma 20mm f/1.8 is king at this although it has a macro ratio of 1:4 ;)

Edit: due to its MFD of 0.2 m.

I'll trump you with my Tokina 10-17 fisheye.  It is supposed to have a focusing distance of  5.5" (from the image plane) but I have gotten mine to focus even closer.

mrsfotografie

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Re: Why some lens says "macro"?
« Reply #20 on: March 22, 2013, 05:47:12 PM »
Just to add to the confusion...some wide-angle lenses that can focus very closely, such as the TS-E 24 II and the 8-15 fisheye, can make for much more interesting "macro" lenses than a true, dedicated macro lens. They let you get super-close to your subject for an interesting perspective and generally do a great job at including enough of the surroundings to put it in context.

The Sigma 20mm f/1.8 is king at this although it has a macro ratio of 1:4 ;)

Edit: due to its MFD of 0.2 m.

I'll trump you with my Tokina 10-17 fisheye.  It is supposed to have a focusing distance of  5.5" (from the image plane) but I have gotten mine to focus even closer.

That's impressive stuff, but it's not rectilinear. However, although I don't much like FE lenses in general you've made me suddenly realize such a lens must have great creative potential when used in the macro range!
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RobPan

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Re: Why some lens says "macro"?
« Reply #21 on: March 22, 2013, 06:06:46 PM »
I should think a macro lens should have better IQ at close distances than an ordinary lens, i.e. it should be corrected for macro work. Whether one can focus close enough or one needs extension tubes seems (a bit) less relevant to me. IQ is more important.Kind regards.

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Re: Why some lens says "macro"?
« Reply #21 on: March 22, 2013, 06:06:46 PM »

AdamJ

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Re: Why some lens says "macro"?
« Reply #22 on: March 22, 2013, 06:52:07 PM »
The 8-15mm fisheye zoom achieves 0.39x mag!
Wouldn't a fisheye lense be a MACKEREL lens?


 ;D Pun-tastic!

TrumpetPower!

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Re: Why some lens says "macro"?
« Reply #23 on: March 22, 2013, 08:17:08 PM »
But, to me, an actual macro lens [...] typically has a focal length of 65 mm....

Hey mate

Curious why you add that caveat?

Oh, no special reason.

Cheers,

b&

LowBloodSugar

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Re: Why some lens says "macro"?
« Reply #24 on: March 23, 2013, 01:08:38 AM »
The 8-15mm fisheye zoom achieves 0.39x mag!

WARNING:  Objects in fisheye are closer than they appear.

Be very careful.
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Re: Why some lens says "macro"?
« Reply #25 on: March 24, 2013, 08:27:01 PM »
by the way pop a 12mm extension tube on a 40mm and it does a pretty decent job of being a macro :)
You should try it with the 25mm tube.  I made a youtube video of it. http://youtu.be/giNI_Ytr2ao

Anthony

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Re: Why some lens says "macro"?
« Reply #25 on: March 24, 2013, 08:27:01 PM »