Decent lens for an IR converted XT camera?

Hello all,

I am going to be sending in my XT to be IR converted.

I will need a decent - QUALITY - and nicely priced lens to use on this camera body as my current lens collection is on the list of "trouble lens" that has been noted.

Sig 10-20
Tam 17-50
Canon 70-300 IS
kit lens 18-55

I will mostly be doing outdoor landscape shots. In strong light.
Any recommendations?

thanks

This is a pretty good link: http://www.lensplay.co​m/lenses/lens_infra_re​d_IR.html

Your 70-300 looks to be on the "good" list, but for landscape you might lean towards the EF-S 10-22 or 17-40 depending on your budget.

Glenn

Anxiously awaiting the arrival of my LifePixel converted XT as well.

Shadowbox wrote in post #5701856
This is a pretty good link: http://www.lensplay.co​m/lenses/lens_infra_re​d_IR.html

Your 70-300 looks to be on the "good" list, but for landscape you might lean towards the EF-S 10-22 or 17-40 depending on your budget.

Glenn

Anxiously awaiting the arrival of my LifePixel converted XT as well.

Well my budget is very limited right now. I was going to purchase a Sig 18-200 OS as a general purpose walk around lens, but that isn't on the good list either.

I have found that the following all work well on my MaxMax converted 20D:

• EF 50 f/1.4
  
• EF-S 17-55
  
• EF 24-105 f/4L
  
• EF 70-200 f/2.8L IS
  

Ask the conversion facility...

I would pose this question to the facility that is converting the camera. There are some facilities whose conversions are designed for specific lenses. You pick from a listing of lenses and they will convert the camera specifically for that lens. I had my D60 DSLR converted by digitalguy.com and he stated that just about any lens can be used but that I should keep my aperture at f/11 or smaller to compensate for the different focus points of the IR.

There are some lenses which are not generally recommended for IR work, such as the 28-135mm f/3.5-5.6, because of hotspots but, I am told by Dave at digitalguy.com that these hotspots are an easy fix with Photoshop.

These images were shot as a test using my 12-24mm Tokina.

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Gosh there is a big divergence of opinions here

You most certainly shouldn't have to stop down to f11 and smaller to achieve focus. If this is the case then the conversion hasn't been done properly. Diffaction kicks in earlier with IR so stopping down is not the solution (if there are hot spots it will also make these more apparent).

It is more difficult to find an UWA lens for IR - the EF-S 10-22 does require a different focus calibration. A good lens for you may be the EF-S 17-85. It is a reasonable price and performs well in IR.

Wayne