Nikon AF-S 28-70mm f/2.8D IF-ED

[XC Pictorial]

Own a copy of these together with the 17 35 as a pair.

Sharpness and contrast is definitely there. However on a 1.5X crop this range isnt very useful to me, except in studio, thus left around for very long, almost not used for 5-6months..

But if nikon FF really comes out, this would be THE lens to have again. 17-35 will be re instate back to ultra wide angle and 28-70 will be come the most useful walkabout range.

Infact, the 17-55f2.8 on a 1.5X is around the range of the 28-70

 

[amts]

I'm looking at the 28-70 or the 17-55. I mostly shoot in the overlap focal lengths and normally require more reach. So I think 28-70 is for me but I have a question about DX lenses.

They are designed for crop sensors but does that mean picture quality of 17-55 is better on my D50 than the 28-70?

 

[blazer_workz]

I'm looking at the 28-70 or the 17-55. I mostly shoot in the overlap focal lengths and normally require more reach. So I think 28-70 is for me but I have a question about DX lenses.

They are designed for crop sensors but does that mean picture quality of 17-55 is better on my D50 than the 28-70?

IMO..28-70 picture quality is better than the 17-55..:think:

 

[blazer_workz]

Own a copy of these together with the 17 35 as a pair.

Sharpness and contrast is definitely there. However on a 1.5X crop this range isnt very useful to me, except in studio, thus left around for very long, almost not used for 5-6months..

But if nikon FF really comes out, this would be THE lens to have again. 17-35 will be re instate back to ultra wide angle and 28-70 will be come the most useful walkabout range.

Infact, the 17-55f2.8 on a 1.5X is around the range of the 28-70

17-55DX on a DX camera is 17-55 on 35mm equivalent
17-35 on a DX camera is 25.5-52.5 on 35mm equivalent
28-70 on a DX camera is 42-105 on 35mm equivalent
IMO..17-55DX is more or less in the range for a 17-35..:think:

 

[calebk]

17-55DX on a DX camera is 17-55 on 35mm equivalent
17-35 on a DX camera is 25.5-52.5 on 35mm equivalent
28-70 on a DX camera is 42-105 on 35mm equivalent
IMO..17-55DX is more or less in the range for a 17-35..:think:

This is inaccurate. Even for DX lenses, you also have to calculate equiv AoV using the 1.5x fl rule.

 

[lsisaxon]

17-55DX on a DX camera is 17-55 on 35mm equivalent
17-35 on a DX camera is 25.5-52.5 on 35mm equivalent
28-70 on a DX camera is 42-105 on 35mm equivalent
IMO..17-55DX is more or less in the range for a 17-35..:think:

It's clearer if you talk about angle of view.
17-55DX DX: 79°-28°50'
17-35 DX: 79°-44°, 135: 104° - 62°
28-70 DX: 53°-22°50', 135: 74° - 34°20'

http://nikonimaging.com/global/products/lens/af/dx/af-s_dx_zoom17-55mmf_28g_if/index.htm
http://nikonimaging.com/global/products/lens/af/zoom/af-s_zoom17-35mmf_28d_if/index.htm
http://nikonimaging.com/global/products/lens/af/zoom/af-s_zoom28-70mmf_28d_if/index.htm

17-55DX is to give DX shooters a lens which would give the same versatility of a 28-70 on 135 format.

 

[Spectrum]

It's clearer if you talk about angle of view.
17-55DX DX: 79°-28°50'
17-35 DX: 79°-44°, 135: 104° - 62°
28-70 DX: 53°-22°50', 135: 74° - 34°20'

http://nikonimaging.com/global/products/lens/af/dx/af-s_dx_zoom17-55mmf_28g_if/index.htm
http://nikonimaging.com/global/products/lens/af/zoom/af-s_zoom17-35mmf_28d_if/index.htm
http://nikonimaging.com/global/products/lens/af/zoom/af-s_zoom28-70mmf_28d_if/index.htm

17-55DX is to give DX shooters a lens which would give the same versatility of a 28-70 on 135 format.

But I believe that the DX lenses will perform better due to more ED glass & Aspherical lens being use to counter the color fringing/abberation thingy due to the CCD construction materials. I believe that more of this glass element will be use in the newer Nikon lenses design. Anyway, just my personal POV only. Cheers

 

[blazer_workz]

This is inaccurate. Even for DX lenses, you also have to calculate equiv AoV using the 1.5x fl rule.

hmm..tis is getting me confused again..:think:
if a DX lens still have to multiply by crop factor then why term it DX? or why even bother to build it in DX format?:think:

 

[vince123123]

Because the description on the lens is still catered for the 35mm format. the DX term means that it is meant to be used on a 1.5 size sensor.

hmm..tis is getting me confused again..:think:
if a DX lens still have to multiply by crop factor then why term it DX? or why even bother to build it in DX format?:think:

 

[lsisaxon]

hmm..tis is getting me confused again..:think:
if a DX lens still have to multiply by crop factor then why term it DX? or why even bother to build it in DX format?:think:

DX only says that the image circle that is projected fron the lens to the sensor is sufficient to covers the area of a DX frame size. So if you mount the DX lens on a 35mm body, you will find that the image doesn't cover the whole frame.

The reason why DX lenses are made is because of the optical construction of the wider angle lenses. To have the same focal length to cover a bigger area, you will need bigger and more precise optics in the rear group to achieve the same aperture and that will bring up the cost. Eg, 18/2.8 for 35mm cost a whole lot more to make than an 18mm which covers only DX-size area. Since 18mm on DX only covers an angle of view equivalent to that of a 27mm lens, it should be priced in that range also otherwise people will be put off just by the cost of the lenses.

It's the same reason why you see numbers like 6.5mm-26mm on the lenses of digital point and shoot cameras. They don't just mark eg, 30mm-115mm because the equivalent angle that the camera would cover that range but they need to mark the actual physical focal length of the lens used.

 

[agape01]

I would only say that DX and non-DX have their own uses on a 1.5 x FLM

 

[lsisaxon]

Because the description on the lens is still catered for the 35mm format. the DX term means that it is meant to be used on a 1.5 size sensor.

If you look at 4/3 lenses, the equivalent of a 70-200 is still marked as 35-100.

 

[calebk]

hmm..tis is getting me confused again..:think:
if a DX lens still have to multiply by crop factor then why term it DX? or why even bother to build it in DX format?:think:

Because a DX lens has an image circle only big enough for the DX sensor, and not a full 35mm negative (or FF sensor). Regardless, all lenses, DX or not, will still have to be subject to the 1.5x multiplication when finding out the equivalent angle of view.

 

[Spectrum]

Quite a few 2nd hand pieces selling in those 2nd hand shops out there got motor screehing sound too. I don't think I have the confident to purchase this sharp lens. Even if it's brand new in box.