Where to buy Tamron SP AF 90mm Di Macro?


my question is, those so-called cheaper "alternatives" actually offer higher than 1:1 magnification which is the usual specs of a typical macro lens.
now, doesnt that make them better for macro, since sometimes those bugs are really super tiny.
 

my question is, those so-called cheaper "alternatives" actually offer higher than 1:1 magnification which is the usual specs of a typical macro lens.
now, doesnt that make them better for macro, since sometimes those bugs are really super tiny.

but they usually have very short working distances so you'll be scaring away the insects most of the time. so you can get a high magnification shot of... the leaf/branch.

also they have very shallow depth of field which makes it hard to get the whole insect in focus.

dedicated macro lens is the easiest way to get into macro.. it's already frustrating enough, no need to make it harder
 

sometimes i see people using close-up lenses/filters on top of macro lens...
so pro......
 

my question is, those so-called cheaper "alternatives" actually offer higher than 1:1 magnification which is the usual specs of a typical macro lens.
now, doesnt that make them better for macro, since sometimes those bugs are really super tiny.

Other than what daren said, the versatility of those super high magnification macro setups is typically quite low. You're limited to a very small range of working distance and very small range of (high :bsmilie:) magnification. So you can shoot an ant, but if during the same session you meet a dragonfly then you'll be limited to shooting "portraits" or "body part abstracts" only...
 

Oo ic ic. Thanks for your reply.

Btw you're the guy who's maintaining the Pentax price guide right? Have been thinking of sending you a PM to thank you for it. You have done a great job, it has been very helpful to me heh~ :thumbsup:

Haha you're welcome :). Glad you found it helpful.
 

Oh, to put an answer to the topic.. i got some quotes and have bought my lens (:


* Pentax product name: Tamron SP AF 90mm f/2.8 Macro Di
* Price (state with or without GST): 534
* Name of retailer: SLR Rev
* Date of purchase or quote: 16/7/10

* Pentax product name: Tamron SP AF 90mm f/2.8 Macro Di
* Price (state with or without GST): 540
* Name of retailer: Cathay
* Date of purchase or quote: 16/7/10

* Pentax product name: Sigma 70mm F2.8 EX DG Macro
* Price (state with or without GST): 790
* Name of retailer: Cathay
* Date of purchase or quote: 16/7/10
 

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my question is, those so-called cheaper "alternatives" actually offer higher than 1:1 magnification which is the usual specs of a typical macro lens.
now, doesnt that make them better for macro, since sometimes those bugs are really super tiny.

You should have just gone to the recent outing at MOG and looked for me. I'd let you try the extension tube or close up filter, reverse adapter or even 100/2.8 macro :D
You will instantly know why ppl use a dedicated macro lens :bsmilie:



As Darrr said. The alternatives are cheap and can be good, but they all only focus along a limited range, so you will be 'stuck' with whatever field of view if gives.
A dedicated macro lens allows you to shoot at any distance up to min focus distance allowing flexibility in composition.

Other stuff other than the above :
1. Close up filters : Typically poorer quality on the edges. Potential image degradation and light loss (typically minimal)
2. Extension tubes : cheap ones have no auto aperture making them very dark when stopped down for focusing purposes.
3. Reverse adapters : Typically gives very large magnifications. Downside of very close focus distances and very dark viewfinder when stopped down.

The alternatives are good if you are specialized or just want a simple close up option in the camera bag when travelling.
 

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You should have just gone to the recent outing at MOG and looked for me. I'd let you try the extension tube or close up filter, reverse adapter or even 100/2.8 macro :D
You will instantly know why ppl use a dedicated macro lens :bsmilie:



As Darrr said. The alternatives are cheap and can be good, but they all only focus along a limited range, so you will be 'stuck' with whatever field of view if gives.
A dedicated macro lens sllows you to shoot at any distance up to min focus distance allowing flexibility in composition.

Other stuff other than the above :
1. Close up filters : Typically poorer quality on the edges. Potential image degradation and light loss (typically minimal)
2. Extension tubes : cheap ones have no auto aperture making them very dark when stopped down for focusing purposes.
3. Reverse adapters : Typically gives very large magnifications. Downside of very close focus distances and very dark viewfinder when stopped down.

The alternatives are good if you are specialized or just want a simple close up option in the camera bag when travelling.


hahs, i just got my kx and i'm staying in jb la bro.. not so easy to join outings..
by the way, there's another way i read about which is reverse mounting a lens in front of normal lens.
so it's effectively stacking 2 lenses with their from element facing each other.
anyone tried this before?
 

hahs, i just got my kx and i'm staying in jb la bro.. not so easy to join outings..
by the way, there's another way i read about which is reverse mounting a lens in front of normal lens.
so it's effectively stacking 2 lenses with their from element facing each other.
anyone tried this before?

This is the last item I've not tried.
But generally the same quirks as #3.
Its advantage is the longer focus distance when paired with a long lens like a 100mm or 200mm so that insects can be shot from further.

Personally, I've found that all are useful, but depends on your subject size, budget and comfort factor in using each system.
The macro experts here and in the Macro sub forum would probably have better advise.
 

You should have just gone to the recent outing at MOG and looked for me. I'd let you try the extension tube or close up filter, reverse adapter or even 100/2.8 macro :D
You will instantly know why ppl use a dedicated macro lens :bsmilie:



As Darrr said. The alternatives are cheap and can be good, but they all only focus along a limited range, so you will be 'stuck' with whatever field of view if gives.
A dedicated macro lens sllows you to shoot at any distance up to min focus distance allowing flexibility in composition.

Other stuff other than the above :
1. Close up filters : Typically poorer quality on the edges. Potential image degradation and light loss (typically minimal)
2. Extension tubes : cheap ones have no auto aperture making them very dark when stopped down for focusing purposes.
3. Reverse adapters : Typically gives very large magnifications. Downside of very close focus distances and very dark viewfinder when stopped down.

The alternatives are good if you are specialized or just want a simple close up option in the camera bag when travelling.

Can i play with your toys in the next outing? :sweatsm:
 

Sure. If next outing is a macro/close up session, I should be bring all the stuff anyway ;)

Since AMK Park is so "hot" nowadays for macro shoot, why not go there in the next outing?
 

as promised... a couple of amature pics by me...

SU1HUDI3NjguanBn.jpg


SU1HUDM1MDMuanBn.jpg
 

Since AMK Park is so "hot" nowadays for macro shoot, why not go there in the next outing?

Can we do something different for the next outing ? lol . 2 outing for macro liao wor :)
 

Can we do something different for the next outing ? lol . 2 outing for macro liao wor :)

"Pentax got slow AF and cannot do sports" :D

"Pentax has very slow AF and cannot take children shots." :)

So its about time we took some "Action" :bsmilie:
 

"Pentax got slow AF and cannot do sports" :D

"Pentax has very slow AF and cannot take children shots." :)

So its about time we took some "Action" :bsmilie:


:) any suggestion ? Bring our kids and let them run around ? lol
 

Just to share a shot taken with Tamron 90mm DI Macro lens......

35072_418130842720_632717720_5055641_8213197_n.jpg
 

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