Author Topic: 28-300 AF Tamron  (Read 8946 times)

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Offline alibarber

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28-300 AF Tamron
« on: May 20, 2006, 09:31:16 PM »
G'day. Anybody used this lense? If so what was the quality like especially at the extremes.

Ali
Ali

minoltaman

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Re: 28-300 AF Tamron
« Reply #1 on: May 22, 2006, 06:37:36 AM »
It's a good optic even wide-open and fully extended. The main disadvantage of this lens is sluggish af speed. I have compared this optic to the beercan, the sigma 70-300 APO DG and the Tokina ATX-Pro 80-200 2.8 and many others and optically the Tamron 28-300XR fares pretty well.


Offline hopeless

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Re: 28-300 AF Tamron
« Reply #2 on: May 22, 2006, 05:22:12 PM »
I borrowed this off my cousin for a few days in March.  I think there are several versions but this was an "AF Aspherical LD (IF) 28-300mmm f3.5-6.3 Macro with a 72mm filter".  It's probably an old version as she's had it a few years on a non-D Minolta SLR.

I don't have any other 300mm lens to compare it with but I found it quite big, surprisingly heavy and slow on the autofocus (particularly outside of the central focus point).  However, for a lot of the shots I took, I was trying to shoot sea birds against a grey sky in the Irish snow/dizzle with numb fingers --- so it might not be a fair test.  I think they also make this lens with a smaller filter size (62mm???) and I reckon that'd make it a more useful (i.e., portable) lens.

Actually, I'm looking for a 300mm lens and I'd still consider buying this one for the all-in-one aspect but I'm leaning towards a Sigma 70-300 APO as it's faster, sharper (I believe) and cheaper.
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minoltaman

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Re: 28-300 AF Tamron
« Reply #3 on: May 22, 2006, 05:54:41 PM »
Yes hopeless, you tried the old one and I don't think it compares with the new XR or XR di.

If you don't need the 28mm the sigma 70-300 DG-APO does a better job at focusing and is good wide open 300mm at f5.6. And yes, the new Xr and XR di are much smaller with a 62mm thread.

Cheers

minoltaman

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Re: 28-300 AF Tamron
« Reply #4 on: May 22, 2006, 06:16:20 PM »
Some shots with the Sigma 70-300 APO DG. Pound for pound the best lens in it's class for the price. When comparing the Tamron XR (missing the rear element coating the XR di has) the optical quality is very similar. The Sigma is  faster wide-open and it's highly usable. The Sigma also does 1:2 macro from 200-300mm a very cool feature.  The biggest  difference that I can find is the Sigma focus is more accurate and a bit quicker in difficult circumstances. I can pull shots like these off with AF on the Sigma and the Tamron may have required some manual focusing here.








Happy shooting!
« Last Edit: May 22, 2006, 06:40:06 PM by minoltaman »

Offline Zack

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Re: 28-300 AF Tamron
« Reply #5 on: June 23, 2006, 01:08:09 AM »
Is the 'APO' version of the Sigma worth the extra money? What are the advantages?

minoltaman

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Re: 28-300 AF Tamron
« Reply #6 on: June 23, 2006, 02:00:55 AM »
Is the 'APO' version of the Sigma worth the extra money? What are the advantages?

Yup.

First off, please refresh your browser as those pix that are posted were edited on a monitor with a foul gamma setting and they are now corrected.

Please see this thread for more than a dozen pix with the Sigma:

http://www.dynaxdigital.com/show-your-images/cheap-lenses-and-great-pix-fuzzy-friends-16pix.0.html

The latest APO DG version has better coatings and element(s) than the non APO DG versions giving much better performance wide open and also at the long end. The aspherical element minimizes abberations. Also the finish on the lens is much nicer. The Sigma 70-300 APO DG Macro has a 200-300mm macro instead of just 300.

From users around the world and my experience I have gathered that the this latest version is the one to get. Many users of many of the past incarnations report softness and poor performance both long and wide-open.

I say do yourself a favor and keep looking for one of these.

Cheers!

« Last Edit: June 23, 2006, 02:18:03 AM by minoltaman »

minoltaman

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Re: 28-300 AF Tamron
« Reply #7 on: June 23, 2006, 02:04:02 AM »
My Sigma 70-300 APO DG Macro review from another site:

sharpnes: 4.5
color: 4
build: 4
distortion: 5
flare control: 5

tested on digital: Yes

review date: April 8, 2006   
 
compared to:

Tokina 80-200 ATX Pro f2.8 , Minolta 70-210 f4, Minolta 70-210 f4.5-5.6, Vivitar 70-210 f2.8-4, Ozunon 70-210 f4.5. Tamron 28-300XR, Sigma 28-200D 
 
positive:
-Sharpness
-Contrast
-1:2 macro @ 200-300mm
-Focal Range
-Size & Weight
-Nice Finish
-DG Coatings & DI
-APO Glass
-price
 
negative:
-macro switch takes a bit to get used to
-front element rotates when focusing
 
comment:

Let me start by saying this optic rocks! This is the APO DG with the red ring and cool finish. It looks good, it feels good, and it delivers at all focal ranges. Don't let anyone kid you this lens produces excellent results. I shoot this baby wide-open and at 300mm and it can knock the old beercan for a loop on most days especially when shooting under harsh conditions.

As far as physical features go his thing has a sweet tack finish and a nice manual focusing ring. The zoom feel is smooth and the lens is very light weight. She does telescope to a very long lenth when at full telephoto w/hood attached, but then she is transformed into a nice small package to stow with the included reversable plastic hood when it's time to put her away.

The advantages this lens seems to have over some older glass in this range is the new DG caotings and APO glass seem to be reducing flare, abberations, and other lens distortions pretty well. The AF is not the fastest but it is not slow either. The lens delivers decent enough bokeh and looks pretty sweet at f5.6.

On a 5d/7d body with AS this lengs can deliver some eyepopping results with image quality easily rivaling some old Minolta favorites. The macro function is a tremendous bonus as it does 1:2 right from this lens without adding a diopter.

I could go on and on about this lens but I will just suggest that if you are looking for a 70-xxx zoom lens and you want to spend USD $200.00 or less for a new lens this one may not be able to be beat.

As you can see I have many lenses in this range and while this one may not focus quite as fast as a $600-2000 pro lens, under many conditions the Sigma 70-300 APO DG Macro can deliver comparable image quality. One note I would make is his lens seems to perform much better at the long end than the reported performances of some of it's earlier incarnations.

This lens is a real keeper and is one of my favorites.
 
« Last Edit: June 23, 2006, 02:17:34 AM by minoltaman »