Macro Lens


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#1
Hi,

I've started to take great interest in doing macro shots. I would like to get a macro lens for it but don't know which to look out for or what is sufficient for me. Any recommendations?

I have a budget though, hope to get one that is $400 or less. I don't mind a second hand or 3rd party ones but dunno how to go about doing it :dunno:. Any advise? Thanks.
 

Leong23

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Oct 18, 2007
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#2
#4
Then what is the difference between two types of lenses; the one that is like just 90mm and another that is of a certain range eg 28-75mm? And what does aspherical ones means? Is there any difference?
 

loboclerk

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Jul 28, 2002
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#5
On budget, you might want to try reversed lens or using extension tube.
Paiseh, newbie qn... what are reversed lens and extension tubes? Keep seeing it on the forum but don't know what they refer to.

Are you referring to closeup filters? Can I add those to any lens for macro pix?
 

J-Chan

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Sep 21, 2005
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#6
a reversed lens is quite self-explanatory, you mount the lens the wrong way round with the front element part into the body.. you'll need special adaptors for that though..

extension tubes are hollow tubes that physically shift the lens further from the sensor/film plane thus allowing closer focusing, but at the expense of infinity focusing..

yea, you can mount those on any lens provided they're the same diameter, but you may or may not get close to 1:1 magnification depending on the diopter value and focal length..
 

Leong23

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#7
Paiseh, newbie qn... what are reversed lens and extension tubes? Keep seeing it on the forum but don't know what they refer to.

Are you referring to closeup filters? Can I add those to any lens for macro pix?
I not nagging, but please do a search. Because i had been posting this link every other week. :)

http://www.clubsnap.com/forums/showthread.php?t=359835

Hope it will help.
 

kirkchua79

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Jan 19, 2005
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#9
i use a 50 f/1.4 reverse on my 400D kit.still experimenting. the vignetting very jia lat.like got borders outside as framing.is that normal??stopping down means lowering the aperture thus more depth of field?:dunno:
 

Leong23

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#10
i use a 50 f/1.4 reverse on my 400D kit.still experimenting. the vignetting very jia lat.like got borders outside as framing.is that normal??stopping down means lowering the aperture thus more depth of field?:dunno:
You mean you reverse your 50mm on your kit lens?

Not sure what is the focal length of your kit lens but it is not recommand. The focal length of the prime lens should be longer than the reverse lens. If the prime lens is wider, vignetting with show.

Why not just reverse your 50mm straight onto the camera? this setup will allow you to achieve 1:1 reproduction ratio, or you can reverse your 50mm on a 100mm, it will allow 2:1 reproduction ratio.
 

kirkchua79

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#13
You mean you reverse your 50mm on your kit lens?

Not sure what is the focal lenght of your kit lens but it is not recommand. The focal length of the prime lens should be longer than the reverse lens. If the prime lens is wider, vignetting with show.

Why not just reverse your 50mm straight onto the camera? this setup will allow you to achieve 1:1 reproduction ratio, or you can reverse your 50mm on a 100mm, it will allow 2:1 reproduction ratio.
ya
50f/1.4 reverse--->coupling ring--->18-55f3.5-5.6--->400D
still a bit confuse bout the ratio 1:1,2:1
2:1 means 2X magnifications?
that means 150mm will achieve 3:1?
but focusing distance still same bout >5cm with manual adjustment
 

Leong23

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#14
ya
50f/1.4 reverse--->coupling ring--->18-55f3.5-5.6--->400D
still a bit confuse bout the ratio 1:1,2:1
2:1 means 2X magnifications?
that means 150mm will achieve 3:1?
but focusing distance still same bout >5cm with manual adjustment
2:1 is 2x magnifications in reference to your sensor size, so FF, DX and APS-C had different magnification.

Yes, reverse a 50mm on a 150mm will achieve 3:1 and maintance around 5cm of focusing distance.
 

geraldkhoo

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Jun 15, 2007
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#15
TS and loboclerk, trust bro Leong23, he is good at it, you won't go wrong. ;)
I second that :thumbsup: Leong23 knows what he is talking about... I met him once to buy a tripod and he was going to shoot insects after that... saw the gear he had :bigeyes: That is where I began to learn about macro gear ;)
 

ymmij

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Dec 4, 2005
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#16
any inconvenience for not having internal focusing for a macro lens? i understand that Tamron 90mm lens will extend out.
 

ngck12

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Dec 4, 2007
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#17
i use a 50 f/1.4 reverse on my 400D kit.still experimenting. the vignetting very jia lat.like got borders outside as framing.is that normal??stopping down means lowering the aperture thus more depth of field?:dunno:

i think your aperture is too small. Try to use f1.4 before reversing. Bear in mind you cant adjust your aperture once u reverse your lens.
 

Leong23

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Oct 18, 2007
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#18
If stacking lens on lens, the aperture on the reversed lens should be wide open, ie, f/1.4 for your case. The DOF control is base on the prime lens.

But if you are using reverse lens straight on the camera, then the DOF control is on the reversed lens. The trick is focusing with the lens wide open, then step down to the desired aperture just prior pressing the shutter.
 

Leong23

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Oct 18, 2007
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#19
any inconvenience for not having internal focusing for a macro lens? i understand that Tamron 90mm lens will extend out.
The only inconvenience is that it will shorten the working distance.
FYI, the minimum focusing distance of lenses is base on subject to sensor plane.
 

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