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Where would I find the serial number on a Tamron 90mm Canon macro lens?

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ken metcalfe

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All of my Tamron lenses have the serial number on the barrel of the lens right next to the "Made in Japan" label. When the lens is in the camera the MIJ label is on the bottom side. I hope that helps with your lens

Posted on Aug 31, 2014

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Anonymous

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SOURCE: Cannot figure out how to take good macro shot with new Tamron len

With an SLR you only get true macro focussing on a lens that has proper macro focussing abilities. Unfortunately in the photogaraphy world, there are a huge number of lenses which claim to have macro ability but are stretching the term far too much.

Strictly speaking, macro means that the lens is capable of producing images on the sensor which are the same size as the actual subject or even bigger, at life size this is described as 1:1 macro. Your Tamron lens is only capable of a maximum 1:3.7 "macro", and that's only at the 200mm zoom setting with the subject no closer than 45cm from the lens. By SLR zoom lens standards, that's actually pretty good, but if you want to go closer and get greater magnification you need to either use a supplementary close-up filter lens or for better optical quality use a set of extension rings. The trade off with close up filter lenses is poor image quality and usually plenty of colour fringing and with extension rings is that if you're using a 2x magnification at 200mm, your f5-ish maximum aperture at 200mm becomes a very dark f10.

The only way to get good macro results is to either use a proper (=expensive) macro lens and excellent lighting, or use extension rings plus a good ring flash unit. However you can improve your macro by investing in a more capable zoom lens with a closer minimum focus distance and a better aperture at the telephoto end of the range. This can be expensive, or you can pick up some very cheap 35mm film SLR lenses. Using an adapter will never allow you to achieve infinity focus on a Canon digital SLR but you can get a close focussing 200mm f3.8 very cheaply. The crop factor of your smaller sensor means it will have the same angle of view as a 310mm lens but the aperture will remain at f3.8. As Canon digital SLR's have the deepest body register (lens to sensor distance) of the current systems then you'll also have the effect of using it on an extension ring. The downside is that you'll have to use the lens in a totally manual mode as no information will be communicated to your camera body. By mounting the lens back to front using a reversing ring you can achieve some really stunning macro magnifications but then you need a tripod, powerful flash and absolutely no wind... There was also a Makinon 80-200mm zoom which sells for next to nothing on auction websites, but it had a macro collar which allowed it to achieve around half size macro (1:2).

Alternatively, if the Fuji still works and does the job just keep it in your camera bag ready for those types of shots. overall, that seems the easiest and best solution unless you really want to get heavily into macro shooting.

I hope that I've helped you, please ask more if there's anything unclear. I've tried to keep a very complicated subject as simple as possible. Please also take a moment to rate my answer.

Posted on Mar 05, 2010

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bhargav

  • 66 Answers

SOURCE: where to locate serial numbers on my new lens

My Tamron 18-270 has number at bottom side toward tripod hole(when lens is mounted on body)

Posted on May 07, 2010

Anonymous

  • 10 Answers

SOURCE: unsharp pictures when using the

Besides any problems with the focus mechanism which should be fairly obvious, your shutter speed may be too slow. A slow shutter speed can be set manually or caused automatically when using a smaller aperture in lower light settings, the camera compensates by opening up the shutter. Try testing your lens out in bright scenes with the aperture open. Another problem is with manual lenses at low apertures. It can be difficult to manually focus at just the right point because shooting around f.4 with a longer barrel lens leads to a very shallow depth of field. To compensate, try a smaller aperture or take a few photos of a subject while adjusting your focus to get the "money shot." If all the above fails make sure to double check your sensor and lens are clean, a greasy or dirty lens will always lead to less crisp photos.

Posted on Mar 07, 2011

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Was I sold a 'pup'? Tamron lens box says AF55-200mmF4-5.6LD MACRO. Can't find macro setting on lens or instructions. Looking at your site, Product Details says 'No Macro'. So what's...

Excerpted from a www.photo.net review of the lens:

Though the Tamron AF 55-200mm Di II LD Macro has "Macro" in its name, it's not really a macro lens. Maximum magnification is about 1/3 life size (Tamron spec it at 1:3.5) as you can see from the following image below, which was shot at 200mm and at the closest focus distance (0.9m/37.4"). This isn't too bad, but it's more of a close focus telephoto lens than a "macro" lens (bolding for emphasis added).

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I cant seem to get the lens to fous on anything within 3 feet when in macro.. am i doing something wrong?

Actually you are doing really well cause the Tamron specifications for that lens is 1.5m translated into real numbers that's 4.92 feet. If you want some serious macro let me suggest the Canon 100mm F2.5 Macro lens it's not all that bad for price unless you get the IS version then it's out of the park well sort of. Most of my macro work is done on a tripod anyway so the IS is a waist for me.

Here is a review on that lens.

http://www.fredmiranda.com/reviews/showproduct.php?product=47

Also is you are using the APS size sensor there is a focal factor of 1.6 so the 100mm lens just grew to 180mm and twice as fast as your Tamron. Cheers
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Having gone over threee months without a response, I assume this is no longer a problem.
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You probably have to set the aperture manually on the lens, because it might not have CPU contacts. I think changing the aperture on the camera will probably have no effect, so just try twisting the aperture ring to wide open.

You usually have to set the aperture at the minimum setting (highest number) so that if the camera is choosing the aperture, it can stop down to the required value.

No good having it set at f2.8 if the shot needs f11.

If the lens is very old, it might have a manual iris that you have to set yourself on the lens. The lenses that stop down automatically will have a tiny peg on the mount that a suitable camera can operate. Gentle pushing of this peg while looking through the lens will tell if it is stopping down - set it wide open first.

If you have a depth of field preview button, this will also have the same effect with the lens on the camera if the body matches up with the lens.
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I'm not sure of the exact model number of your lens, but the hood should have a bayonet flange and rotating it in one direction or the other should allow it to then simply pull off.
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