who here knows lenses?

[DragonFury]

I have a Canon 10.1MP Rebel XS EOS camera. Now I am trying find some information out on a teleconverter to see what lenses it will fit..

Since I lost my 18/200mm zoom lens, due to an accident, I been stuck with the original 18/55mm zoom lens that comes with this camera, and using it is starting to drive me bananas. I am planning on picking up a 55/250mm telephoto lens from canon HERE and I want to know if this teleconverter HERE is compatible with the lens i listed. Having a capability of cheaply reaching out to 500mm zoom would be a nice touch for some of the shots I like to do. I cant find any information on what cna and what cannot be used with this teleconverter.

[vbironchef]

Looks like it will work to me.

[DragonFury]

Hmm odd the link for the 55/250 goes to a 70/300...

This is the lens I am looking at here

If I have to I will go get the tameron 70/300 mm macro lens while macro is enabled I can boost that lens to 480mm then use a tele on it to boost it farther.

[vbironchef]

It's all about you get what you pay for. You have a good camera. I don't buy tele converters because they require a lot of light to work properly. A very quick f stop would help with the telecoverter I suppose. I would look at a lens that has a faster f stop, something like a f2.5 but you will have to pay up for it. Maybe this lens? Canon EF-S 18-200mm f/3.5-5.6 IS lens http://www.dpreview.com/lensreviews/can ... 6_is_c16/4 It's really how much you want to spend. dpreview gives some good advice. Hope this helps.

[KnightRid]

If you are not doing professional work, normal lenses will do just fine. I still use some low end Quantaray 100-300 lens I had with our old Canon Rebel that tool film - FILM I say!

I have a Canon t3i and have been looking for a teleconvertor also but I get discouraged when i read taht some of them only work with the same manufacturer's lenses that makes the teleconvertor.

I will be interested if you get one and how it works for you. Also if it works with other manufacturer's lenses or not.

[DragonFury]

Well i found out some interesting news, the 55/250mm Canon lens I am looking at uses a EF-S mount, which from what I can gather canon moved the back part of the rear lens closer to the sensor vs the EF mounts. Here is a bit more info.

The EF-S lens mount is a derivative of the EF lens mount created for a subset of Canon digital single-lens reflex cameras with APS-C sized image sensors. It was released in 2003. Cameras supporting the EF-S mount are backward-compatible with the EF lens mount and, as such, have a flange focal distance of 44.0 mm. Cameras supporting EF-S, however, have more clearance, allowing lens elements to be closer to the sensor than in the EF mount. Only Canon cameras with the APS-C sized sensor released after 2003 support the EF-S mount.

And looking at the Tamron Teleconverter it supports EF style of mounts, so I wont be able to use any EF-S mounts with that teleconverter . The only other option I have is to goto a tameron 18/200 or a 70/300 macro EF mount but then I lose image stabilization from the 55-250 canon lens.

[DragonFury]

Well I gotten the 55-250mm EF-S lens in last friday, I will have to say I am somewhat impressed with it, considering i only paid 200 bones for it. the biggest problem I am facing with the lens is that it does not do so well in low light situations at least not as good as my past 18-200mm lens I had.

So I am going to use this lens for now and when i can pick up a L series lens from cannon that will have a decent reach, and great low light capabilities I am looking for. Just it wont have the IS feature because of cost restraints, but having a wide aperture of 2.8 through out the entire zoom will make the lens fast enough on the aperture enabling me to hold the lens steady in semi low light situations.

[DragonFury]

AFter playing around with this lens, it is not that bad of one. SOme of the issues I see are a small barrel distortion while @ 55mm, but slowly fades away and becomes pincushion at the 250mm. It is minor, depends on your personal tastes I can live with it. It also has some vignetting (dark edges), but can be fixed easily through either Canon's DPP, or Adobe Photoshop Light room 3+ programs (Adobe has a feature that will correct both barrel distortion and vignetting easily). The IS is what I call very good as I can get steady images @ 250mm while using a 1/4 shutter speed. if you using a tripod, and taking pictures that are still there is no limit what you can achieve, if doing sports and fast moving objects use a lot of light or use a flash.

For 200 USD for a lens it does quite well.

some Sample pictures I have taken with this lens on a 10.1 MP EOS Rebel XS camera





Here is the lens itself