Doubt in lens for full frame or APC - will they still be compatible?

[Cegonha]

Hi everybody, just an oppinion from you experts to help me understand a few concepts and a few compatibility issues...
I just bought my first DSLR, a Nikon D5000, and now I´m looking to buy a Tamron 17-50 f2.8 and a Tamron 70-200 f2.8. I got recommendations about Tamron lens, so that´s why I choose these two.

But, the 17-50 is a Di II type lens, meaning that it is made for APC/DX sensors, and the 70-200 is a Di, meaning that is made for FX (full-frame if I understood correctly) but would work on APC/DX cameras.

My doubts:
1) is it true, both would work fine in my DX D5000, or the 70-200 will not?
2) I plan to buy a full frame camera in the future (say, in 2-3 years, after learning well with the D5000). Will these 2 lens work with my future camera (now, I understand that the 70-200 will, but the 17-50 not)?
3) Would you recommend me to post-pone buying the 70-200 or try a different fast lens that work with Nikon D5000 DX system?

Thank you very much!!

[CaptainNH]

Originally Posted by Cegonha

1) is it true, both would work fine in my DX D5000, or the 70-200 will not?

Both the Di and Di-II lenses will work on your DX-sensor camera.

Originally Posted by Cegonha

2) I plan to buy a full frame camera in the future (say, in 2-3 years, after learning well with the D5000). Will these 2 lens work with my future camera (now, I understand that the 70-200 will, but the 17-50 not)?

The Di-II lenses are not compatible with FX cameras, if you can get it to mount without hitting the mirror, your photos would look something like this......

Originally Posted by Cegonha

3) Would you recommend me to post-pone buying the 70-200 or try a different fast lens that work with Nikon D5000 DX system?

If you need a fast 70-200 now, there's not need to postpone because you're using a DX camera.

[LoveDSLR]

Originally Posted by Cegonha

My doubts:
1) is it true, both would work fine in my DX D5000, or the 70-200 will not?

Yes it is true. DX and FX lenses will work fine with your D5000.

Originally Posted by Cegonha

2) I plan to buy a full frame camera in the future (say, in 2-3 years, after learning well with the D5000). Will these 2 lens work with my future camera (now, I understand that the 70-200 will, but the 17-50 not)?

You can mount both DX and FX lenses to current FX bodies. FX camera will switch to reduced MP DX mode (e.g., ~5 MP DX with D3/D3s/D700).

For example, I can use the Nikon 10.5 DX with my D3 (FX) and Nikon 70-200 f/2.8 VR II (FX) with my D300 & D40 (DX).

[firebox40dash5]

Originally Posted by CaptainNH

The Di-II lenses are not compatible with FX cameras, if you can get it to mount without hitting the mirror, your photos would look something like this......

Why would a lens designed for DX hit the mirror on an FX camera? Last I checked, the sensor-to-mount distance is the same across DX, FX and film, at least for Nikon. And the image you posted is taken with the 10.5mm DX fisheye- a fisheye lens' image circle pretty much has to barely cover the film/sensor, since the fisheye distortion effect is strongest at the edges. Some DX lenses (such as the 12-24mm and 10-24mm wide angles) even cover FX/film completely at their longer focal lengths.

To the OP- you're pretty much doomed to having at least one crop-sensor lens if you want a zoom that covers anything decently wide (below about 24-28mm), unless you bought a 24-xx zoom, and a wide angle to cover the 18-24mm range (or 16mm, 17mm, whatever the case may be). Full-frame lenses work fine on DX, and have the advantage of using the center of the image circle, which usually has the best image quality. The disadvantage, of course, is the crop factor at the wide end.

[LoveDSLR]

Originally Posted by firebox40dash5

Why would a lens designed for DX hit the mirror on an FX camera?

Maybe CaptainNH was describing Canon EF-S lenses with Canon full frame bodies.