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DX lens on FX camera
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Dec 31, 2018 07:26:10   #
ronichas Loc: Long Island
 
I have a Rokinon 14 mm lens for my full frame Nikon. It was suggested to me by Gabe Bidderman, works at B&H and is one of the guys that runs the National Parks at night workshops.

They are not expensive, great lenses. I also have a Rokinon fisheye for my Sony

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Dec 31, 2018 08:37:10   #
Fotomacher Loc: Toronto
 
I use my Nikkor AF 16mm f/2.8D for ultrawide and get great images.

D700 + Nikkor 16mm f/2.8D / image cropped
D700 + Nikkor 16mm f/2.8D / image cropped...
(Download)

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Dec 31, 2018 08:50:38   #
imagemeister Loc: mid east Florida
 
SoCal Dave wrote:
Irix 11mm. widest rectilinear full frame lens. love it.


- make that "prime" lens ....

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Dec 31, 2018 09:06:17   #
LWW Loc: Banana Republic of America
 
joer wrote:
Of course it will work but it produces an angle of views equal to 15 to 30mm so nothing is gained in AOV and loosing a lot of pixels. Foolish approach.


Then why are you making it worse?

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Dec 31, 2018 09:20:48   #
dcampbell52 Loc: Clearwater Fl
 
Gianfranco47 wrote:
most probably this argument has been deeply discussed but once again is not bad , i have a Nikon D800 and one D3 and i need a wide angle lens wider than 14/24 mm , i want to buy the Nikon 10/20 AF-P DX refurbished for $239.95 by Nikon what will be the problems connected with this combination ?
If you have other alternative at same price pls tell me
regards


Any DX lens (on FX or DX) will have the 1.5 magnification issue. An FX lens on the DX camera also has the same issue.. it is because of the sensor being roughly 1/3rd smaller.. On an FX camera with a DX lens, the camera will only use the center 2/3rds of the sensor and will go into "DX" mode which will give the same 1.5 magnification. Currently, I have 2 DX cameras (Nikon D7000 and Nikon D7100) and an FX camera (Nikon D610). I have one DX lens remaining (Tamron 10-24mm) and EVERYTHING else is an FX lens.. All of my FX lenses work fine on my 2 DX cameras and I don't have to worry about them on the FX... My Tamron works on the FX camera BUT, it still sets the camera (automatically) to DX mode and ONLY uses the center 2/3rds of the sensor. I will be moving to a Wide or Wide zoom FX lens as soon as funds permit.

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Dec 31, 2018 12:14:01   #
DennisC. Loc: Antelope, CA
 
The Laowa 12mm Zero D is wider a than the Nikon 14-24, sharp plus less distortion.

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Dec 31, 2018 12:46:15   #
amfoto1 Loc: San Jose, Calif. USA
 
Gianfranco47 wrote:
most probably this argument has been deeply discussed but once again is not bad , i have a Nikon D800 and one D3 and i need a wide angle lens wider than 14/24 mm , i want to buy the Nikon 10/20 AF-P DX refurbished for $239.95 by Nikon what will be the problems connected with this combination ?
If you have other alternative at same price pls tell me
regards


It will work, but there's no "free lunch".

Using a DX lens on your FX camera will essentially mean throwing away all the "full frame goodness" of the camera.

Instead of a 36MP FX camera, you'll have approx. 15MP DX camera. That's considerably less resolution than the current and recent DX cameras (21MP and 24MP). You'll lose this resolution regardless whether you set the camera to DX mode where it will crop the image to DX format in-camera or leave the camera in FX mode and get heavily vignetted images that you end up cropping later in post-processing. Either way, you end up with the same greatly reduced resolution.

Also, that's an "AF-P" lens. As such, your older Nikon camera's firmware will need to be updated to work with this newer type of lens and even then it won't be fully compatible. If I recall correctly, you won't be able to switch the lens to manual focus or to turn VR off. With AF-P lenses those things are done in the camera's menu... and even updated the D800 doesn't include them.

You would be much better off saving up and getting an actual FX wide angle.

About the least expensive super wide FX lenses are the Rokinon/Samyang 14mm f/2.8 for around $275. Those are manual focus, manual aperture lenses... but depth of field is so great with an ultrawide like these that manual focus isn't very difficult with them. There also are Rokinon/Samyang 12mm in FX, but they are about $100 more expensive and they are fisheye lenses. For a little more money, there are Rokinon 20mm, IRIX 15mm and Venus Optics Laowa 14mm. Again, all these are manual focus, manual aperture lenses.

The least expensive autofocus wide angle zoom for Nikon FX is the Tokina 17-35mm f/4 for around $450 new.

You might find some of the above for a bit less used (for example, I see that B&H Photo has that Tokina zoom avail. used for $372).

EDIT: Just reread and notice you already have the 14-24mm Nikkor. That being the case, you have limited options for anything wider. The IRIX 11mm f/4 at about $535 is probably your best bet.

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Dec 31, 2018 12:49:48   #
amfoto1 Loc: San Jose, Calif. USA
 
DennisC. wrote:
The Laowa 12mm Zero D is wider a than the Nikon 14-24, sharp plus less distortion.


And it's also $850.

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Dec 31, 2018 12:56:59   #
SoCal Dave
 
Irix 11mm Firefly on holiday sale for $495 at bhphoto. Writer wanted WIDER than 14mm...very few options there... 12-24 Sigma, Laowa 12 and Irix 11. Irix is cheapest, widest and excellent IMHO. I also own the Sigma and the 14-24 Nikon so I have no particular bias.

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Dec 31, 2018 15:16:40   #
chrisg-optical Loc: New York, NY
 
Gianfranco47 wrote:
most probably this argument has been deeply discussed but once again is not bad , i have a Nikon D800 and one D3 and i need a wide angle lens wider than 14/24 mm , i want to buy the Nikon 10/20 AF-P DX refurbished for $239.95 by Nikon what will be the problems connected with this combination ?
If you have other alternative at same price pls tell me
regards


I use this lens on my D7200 and it gives great results - I suspect on FX it will severely "vignette" lower than 18mm - best to use an FX lens on FX body and stitch images together for wider vistas. The IQ will be better with an FX lens and while the 10-20 is a good lens for DX it has a plastic mount.

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Dec 31, 2018 16:13:36   #
pmackd Loc: Alameda CA
 
Most of the answers in this thread are nonsense written by people who (A) haven't tried the 10-20 AF-P DX on a full frame Nikon and/or (B) have limited to no understanding of Nikon DX vs FX. I won't wast time refuting them except to say that the focal length of a lens is an intrinsic property of the lens which will produce the same image circle on any camera, and that auto DX recognition can be turned off on a D750. I have been using my 10-20mm AF-P DX lens on my D750 full frame, most recently on a trip to China. The 10-20 produces a larger image than one would expect from a DX lens, much larger than needed on a DX camera. Between 13 and 18mm there is very little vignetting and the lens is entirely usable on my D750. Below 13 and above 18 there's enough vignetting that correcting it might not be worthwhile; I haven't tried it. I also have a Tokina 11-16mm DX lens that is marginally useful on a full frame Nikon. That lens vignettes heavily below 16mm, making it in effect a wide angle prime on a full frame camera. The bottom line is that the 10-20 provides slightly wider coverage than Nikon's full frame 14-24 mm (13mm usefully), and does so at less than 1/4 the weight. The image quality won't be as good of course, but for casual shooting it's fine.

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Dec 31, 2018 16:35:33   #
marty wild Loc: England
 
Gianfranco47 wrote:
most probably this argument has been deeply discussed but once again is not bad , i have a Nikon D800 and one D3 and i need a wide angle lens wider than 14/24 mm , i want to buy the Nikon 10/20 AF-P DX refurbished for $239.95 by Nikon what will be the problems connected with this combination ?
If you have other alternative at same price pls tell me
regards

Why would what to lose so much match with a $100 D200 you will have a good set up

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Jan 1, 2019 00:08:06   #
barryb Loc: Kansas
 
Just curious, what are you shooting that you need a wider fov that what you already have?

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Jan 2, 2019 20:15:22   #
SoCal Dave
 
barryb wrote:
Just curious, what are you shooting that you need a wider fov that what you already have?


This shot at the top of Mont St. Michele was only possible at 11mm...I often find while traveling (especially in Europe) that the widest lens I have isn't wide enough! Under the Arc d Triomphe, inside the St. Peter's Basillica, The Paris Opera House...even with 11mm I sometimes have to resort to fisheye!! Lots of occasions where 14mm just isnt wide enough.



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Jan 4, 2019 08:14:37   #
Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)
 
amfoto1 wrote:
It will work, but there's no "free lunch".

Instead of a 36MP FX camera, you'll have approx. 15MP DX camera. That's considerably less resolution than the current and recent DX cameras (21MP and 24MP). You'll lose this resolution regardless whether you set the camera to DX mode where it will crop the image to DX format in-camera or leave the camera in FX mode and get heavily vignetted images that you end up cropping later in post-processing. Either way, you end up with the same greatly reduced resolution.
It will work, but there's no "free lunch"... (show quote)


Not exactly. First, the image projected onto the FX sensor is a circle. So what you end up with is an image circle that is taller than the FX sensor, and almost as wide. The physical vignetting is in the corners - the top and bottom edges are usually fine, and in many cases so are the left and right edges. Some lenses, like the Nikkor 35m F1.8 can actually cover the entire FX sensor with only minor corner issues. In any case, you will come close to a 4200 wide x 4900 tall image if you shoot with a DX lens on a D800, or at least 20 mp in many cases. With a 35 F1.8, the 10.5 mm DX Fisheye, and other lenses, you can get an even bigger image circle.

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