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Cameras, Lenses and Accessories: Discuss New Tamron 18-270 model B008 for Canon 400D?...Hi, I've been owner of Canon 400D with budget 18-55mm lens for more than 2 years now. I did not ...
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Old 28-01-2011, 21:55   #1 (permalink)
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New Tamron 18-270 model B008 for Canon 400D?

Hi,

I've been owner of Canon 400D with budget 18-55mm lens for more than 2 years now. I did not have money to upgrade lens until now, so I am looking around for a lens that would be a good replacement. I will use this lens for holiday in 90% of time and I like to do night pictures occasionally.

After doing some research I found the Tamron 18-270mm lens, which already exist in 2 versions.
Older version is Tamron AF 18-270mm f/3.5-6.3 Di II VC B003, which I can get for £350, and newer is Tamron AF 18-270mm f/3.5-6.3 Di II VC PZD B008 which costs about £550, cheapest I found in the UK so far.

I read that the older model had some issues with zoom creep, and is slightly bigger than PZD model which looks great to me, but there is perhaps some concern about VC function not working properly. However I've have seen some stunning pictures on another forum, I'd like rather the new model, but to get it for better price, I will have to bring it from USA where it's currently costs "only" 650$ (amazon), so I am not sure if that hassle is worth it. But I will wait for proper review first, before I decide.

Is this lens a good choice and will it work with Canon 400D?
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Old 28-01-2011, 22:52   #2 (permalink)
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Re: New Tamron 18-270 model B008 for Canon 400D?

I had the slightly older still 18-250 on my 350D

It was the lens that stayed on the camera all the time and spent a lot of time in Malta.

Tamron lenses seem to get overlooked which is a shame because they are well worth the money.

The zoom creep isn't an issue when taking a picture, it creeps when you carry your camera lens down. It has a little catch on the zoom mech to stop this very thing. It can be slightly annoying if you want to take a quick shot and forget to take it off
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Old 28-01-2011, 23:31   #3 (permalink)
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Re: New Tamron 18-270 model B008 for Canon 400D?

Welcome to Pixalo Vito

I have seen many good reports on the older model and no bad ones

The newer one is smaller, lighter and may well focus a little quicker, but I would lay money on you and me not being able to tell the difference between pictures taken with either lens.

If you can get the older one for £350, that seems to be incredibly good value. I'm sure they were around £500 not so long ago. For a general purpose holiday lens I think it is ideal.
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Old 29-01-2011, 00:17   #4 (permalink)
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Re: New Tamron 18-270 model B008 for Canon 400D?

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Old 30-01-2011, 20:43   #5 (permalink)
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Re: New Tamron 18-270 model B008 for Canon 400D?

Thanks for all replies.

I have still one concern, and it's whether this new B008 lens will work with 400D.
According to TAMRON | News | Introducing the New 18-270mm (Model B008), The World's Lightest, Smallest 15x Zoom, with Tamron's First PZD (Piezo Drive) AF and VC , product features point 3. says:
Code:
Di II lenses are for exclusive use with digital SLR cameras (with APS-C size sensors), 
with a suitably optimized optical design. 
These lenses cannot be used with digital SLR cameras with an image sensor
larger than APS-C size, or 35mm film SLR cameras.
I found that 400D has no APS-C, but CMOS sensor, so from what I understand I can't use this lens if my sensor is larger than APS-C size.
Looking into exact specs for 400D: Sensor size 22.2 x 14.8 mm (3.28 cm²)

To figure out APS-C sensor size I checked APS-C - Wikipedia, the free encyclopedia and things becoming even more confusing (or perhaps not). According this:
Code:
Sensor sizes range from 20.7×13.8 mm to 28.7×19.1 mm
So my sensor should be smaller than maximum sized APS-C sensor. But I am really confused, not sure what's going on here really. So if I try to understand, every lens gives certain maximum physical picture size and sensor will crop the picture to it's size?

On another note: I am very disappointed that lens have different fitting for each model. I will buy expensive lens (now) and have to stick with one make, I can't have Nikon and Canon bodies with one lens? That I really don't understand...
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Old 30-01-2011, 22:56   #6 (permalink)
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Re: New Tamron 18-270 model B008 for Canon 400D?

Your 400D has got an APS-C sensor. This relates to the sensor size. The CMOS refers to the sensor design, the other popular one being CCD.

Some Canon cameras have slightly different APS-C sized sensors. This will account for the variation in the APS-C sizes. You can't use lenses designed for APS-C sensors on full frame cameras.

Years ago you could get the Tamrom 'Adaptall' lenses. These used a Tamron made mount that was detachable from the lens, so could be swapped to enable the lens to fit other brands of camera. This was long before the days of autofocus and camera metering. You can still buy adaptors to fit lenses to the other brand cameras, but you loose all of the auto functions, and most people don't want this. The different brands of camera use different engineering for their autofocus and metering systems, so there is no way that the lenses can be interchangeable. It is like expecting to be able to use a PAL television in a country where the TV system is NTSC or SECAM. It just won't work, and in the case of cameras - they won't even fit.

You have identified one of the most important things though. When you buy a camera, you are buying into a system, so it is important that you make the right choice from the very beginning.
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Old 07-02-2011, 10:47   #7 (permalink)
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Re: New Tamron 18-270 model B008 for Canon 400D?

If you are still thinking about one of these check out Onestop Digital who advertise on the home page of this site (never used them myself though), they have the new PDZ version for £445.99 which is cheap.

Having owned the older non PDZ version for just over a year I can recommend it but it does have some shortcomings. It is not the fastest to focus, I throw a lot of shots of my dogs (lurchers) running away due to not locking on. It is not great indoors or for that matter in any low light situations as it is slow and forget built in flash for close ups as it is big and casts a shadow. The VC is great and it doesn't creep unless inverted up or down but it does stick slightly at 100mm. I suppose you could say it is the Jack of all but master of none but as a full time walk around lens it works very well indeed. Three people I know have bought one after trying mine and they are all very happy.

I have briefly tried the PDZ version and it is much smaller and feels lighter, it might also be slightly quicker to focus and quieter but not enough to tempt me to change. As for weight and size I had my one fixed to my 500D for 14 months quite often carrying it all day and I never had an issue. There are a few reviews that say the new one is not as good as the old one for IQ but I can't imagine there is much in it if true.

I will add if you do get one it is a hard and expensive lens to replace for improvement as it covers a 2-3 lens range. I am now thinking Cannon 17-55 2.8 at £700 and a 70-200L £850 non IS (much more with IS) and I am still 70mm short so add a x1.4 converter for £250 giving £1800 plus a new bag or jacket with extra large pockets.
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Old 07-02-2011, 20:20   #8 (permalink)
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Re: New Tamron 18-270 model B008 for Canon 400D?

Graham,
I thought camera manufacturers usually have a fixed focal length multiplier for their APS-C bodies, isn't it?
like, Canon - 1.6, Nikon - 1.5 etc?
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Old 07-02-2011, 21:27   #9 (permalink)
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Re: New Tamron 18-270 model B008 for Canon 400D?

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Originally Posted by jayaruwan View Post
Graham,
I thought camera manufacturers usually have a fixed focal length multiplier for their APS-C bodies, isn't it?
like, Canon - 1.6, Nikon - 1.5 etc?
I think that some of the Canon 1D models have 1.3x sensors.
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Old 08-02-2011, 04:20   #10 (permalink)
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Re: New Tamron 18-270 model B008 for Canon 400D?

ohh thanks. it seems like that. they are the APS-H ones, right?
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Old 08-02-2011, 08:18   #11 (permalink)
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Re: New Tamron 18-270 model B008 for Canon 400D?

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Originally Posted by jayaruwan View Post
ohh thanks. it seems like that. they are the APS-H ones, right?
Not a Canon user, so don't know what they are called.
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