jerryc41 Loc: Catskill Mts of NY

Wide angles and a reasonable price - a Nikon 10-20mm DX for $310.

https://www.dpreview.com/news/6953738760/nikon-announces-budget-friendly-af-p-10-20mm-f4-5-5-6g-vr-lens-for-dx-bodies

Barbcity Loc: Berkeley, California

I have a rokinon 14mm that was $300. It is also a fabulous astrophotography lens with very little coma (little to none of the stars turn into comet shapes).

mas24 Loc: Southern CA

I got an email alert from B&H just a couple of days ago regarding this lens. It is priced reasonably IMO. Designed for DX cameras, so it should sell well to amateurs like me. I deciding should I wait and get a Tokina 11-16mm f2.8. Which I feel is a better lens.

jerryc41 Loc: Catskill Mts of NY

I've used the Tokina, and it is very good. I now have the 16-28mm for my FX bodies.

wdfbpf Loc: Huntsville, AL

One thing (of many) that I don't understand. When Nikon makes a lens that says it is for a DX camera, why isn't it a 10-20mm when it says it is, instead of actually being an effective 15-30mm? You would think if it is made specifically for a DX it would be what it says on the lens?

mas24 Loc: Southern CA

[quote=wdfbpf]One thing (of many) that I don't understand. When Nikon makes a lens that says it is for a DX camera, why isn't it a 10-20mm when it says it is, instead of actually being an effective 15-30mm? You would think if it is made specifically for a DX it would be what it says on the lens?[/quote indicated. Lenses are created for the 35mm format. It matters not if it is designed for a DX camera. You are correct when you said it would have a FOV of 15-30mm, with the 1.5X factor. That's why full frame cameras are generally more expensive. They are a 35mm format.

MtnMan Loc: ID

[quote=mas24][quote=wdfbpf]One thing (of many) that I don't understand. When Nikon makes a lens that says it is for a DX camera, why isn't it a 10-20mm when it says it is, instead of actually being an effective 15-30mm? You would think if it is made specifically for a DX it would be what it says on the lens?[/quote indicated. Lenses are created for the 35mm format. It matters not if it is designed for a DX camera. You are correct when you said it would have a FOV of 15-30mm, with the 1.5X factor. That's why full frame cameras are generally more expensive. They are a 35mm format.[/quote]

No. DX lenses project a smaller image that will be distorted and vignetted over the outer portion of the 35mm film area.

But the lens focal length is what they put on lenses. The sensor put at the focal plane doesn't affect the lens.