This probably has been posted elsewhere... but I didn't have time to do the search properly. I have been toying around with the idea of going FX for a while. Reason I haven't is because of all the DX lenses I have. My question is... With 36mp in FX... would the DX mode be equivalant to say the D7000 in size and quality? Quality being the main factor here.
Thats what I was kind of hoping for... I had thought about getting a used 700... but I think this makes more sense. And, I can take time building my fx lens collection instead of doing so all at once. That new 28-300 VR looks intriguing as well for a carry all lens
I've heard nothing but glowing reports about that lens. It was either the 24-120 /f4 or 28-300. Both are good. I'll just have to decide which I can afford and which range I'll be using the most. I tend to go wide on my D7000
Sat 11-Feb-12 04:09 AM | edited Sat 11-Feb-12 04:12 AM by RRRoger
The 28-300 will be 42-450 equivalent in DX mode. You may like it a lot better in FullFrame as it is very sharp at 28mm wide open. What surprised me when I first went FullFrame with the D3 was that I was bitten by the Wide Bug. You may find yourself lusting for the 14-24, 16-35, or 17-35 Nikkors. They are much cheaper used. Check out the Nikonians buy/sell.
To make the most of the sensor you'll be looking for lenses that deliver around 2456 LP/PH ( line pairs/picture height ). That's around 100 LP/MM (line pairs/mm ). The 28-300 comes up short of that in several configurations. If you don't mind shooting the 28-50mm range of it at F/8 then you're good ( as far as across-frame resolution goes ). At the 100-300mm range you should be able to get pretty good results at F/5.6.
On DX the lens performs better because you are cropping out the center portion of the image circle, which is sharper.
You should clearly be just fine in a transition period. You'd be "limited" to making some excellent 24x36 or 30x45 prints in the DX mode... even if you could have made something even bigger using the whole sensor!
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!
Quote>You should clearly be just fine in a transition period. >You'd be "limited" to making some excellent 24x36 or >30x45 prints in the DX mode... even if you could have made >something even bigger using the whole sensor! <Quote<<
I personally might find the DX mode useful, especially for Video. I am not worried about the size of the print with a D800 so much as loosing fine detail when used for Group shots and Landscapes.
Sat 11-Feb-12 03:44 PM | edited Sat 11-Feb-12 03:45 PM by icslowmo
Read CameraLabs's preview of D800 and Laing mentioned using 1.2x crop mode on good coverage DX lenses... Sounds like a good idea to try, other wise standard DX crop mode would be fine... Looking forward to getting my D800E....
Hi. Other than dealing with much larger images files, is there any disadvantage to shooting in fx mode while using a dx lens? Provided one has an understanding of what the periphery would look like, this might be useful. I don't own an fx body so have no idea. Peter
DX lenses are not optically designed for any image capturing outside of their DX sized image circle. That doesn't mean that information beyond the DX image circle isn't any good, but you just don't know until you try it. Some lenses just get too soft out there, other lenses might have strange distortions, or both.
For a while I was using a Sigma 10-20mm DX lens on a D700, forcing it to FX mode. Due to where the end of the image circle was I was able to use it in a square format by cropping off the left and right sides of the normal 2:3 ratio FX frame with rather good results. That yielded about a 114 degree angle of view from one corner of the square to the other, versus a similar 114 degree angle of view (out of the rectangle) by using the 14-24mm lens.
I have that Sigma 8mm fisheye and love the little thing. Mine is the older F/4, not the newer F/3.5. Since it's making a circular image then any part of the frame outside of the square in the middle is all black anyway, so on the D4 you should be able to shoot it at the 5:4 format (4,096 × 3,280 pixels) since those 416 pixels on either side are all black anyway, or on the D800 at 5:4 (6,144 x 4,912 pixels) since the 608 pixels on either side are all black.
You could just shoot full frame anyway and just crop it square after the fact in post ( which is what I usually do ). I like my fisheye shots to be on a square format. Like the shot I attached below (although now that I see it you can't see it's on a square black background but if you right click on it and open it you'll get the point).
Hey, I did a whale watch in Monterey last summer. Looks nice a nice area. Didn't get a chance to check out the aquarium, though.
Sun 12-Feb-12 10:43 AM | edited Sun 12-Feb-12 10:46 AM by mbryan777
I pre-ordered the D800 last Tues and I will be very interested to see how my DX lens work on it. I would like to hear anyone's feedback about using DX lens' on an FX body. I have a very sharp Tokina 11-16mm (Tokina AT-X 116 Pro DX 11-16mm) that I would like to take advantage of. Ken Rockwell indicates that he achieves 15mm from it with his D3s and 13mm with his F4 film camera. Here is a link to Ken's comments:
Sun 12-Feb-12 11:01 AM | edited Sun 12-Feb-12 11:02 AM by chiefmasterjedi
The Tamron AF 90mm f/2.8 Di SP is a full frame lens so you wont have any issues with it on the D800. My wife has this lens and I just checked it on my D700. Tamron DX lenses are noted as "Di II" in the model description.
Thank you Brian for the compliment and information. I also appreciate your feedback Christian. I'm glad to hear it is full frame. I think I am going to need sharp lens for the D800.
I'm really going to show my ignorance here, but I am confused. The spec on B&H shows the lens to have a Format Compatibility of "Nikon DX". Are they wrong or am I misunderstanding something? Here is a link to the B&H page:
The FX lenses will go 36 MP ,it auto crops the sensor to 16 MP with a DX lens . Manual settings can get you a variation of a center square with a DX lens at the 1.2 crop .A few DX lenses only shave the corners on FX sensor settings .You can over ride the auto function So basically its close to a D700 on DX at 16 MP .
That HDR image does look really good. Nice job. It looks to be more than just a straight HDR, though. Looks like you were very specific in what you did where in the image and achieved a very good look.
The Sigma 8mm is designed for an FX sensor, so it creates a larger image circle, larger than the size of a DX sensor, so you get the top and bottom cut off.
You have two options:
1. You shoot it on an FX body, where you'll get the entire circle. 2. You take one shot horizontal, a second shot at a 33 degree tilt, and a third shot at a 66 degree tilt, then in post you combine the images to create the full circle. That only really works well with static subjects, though. I used to do that before I got my D3 and was shooting all DX.
Sun 12-Feb-12 02:57 PM | edited Sun 12-Feb-12 03:01 PM by RRRoger
>The Sigma 8mm is designed for an FX sensor, so it creates a >larger image circle, larger than the size of a DX sensor, so >you get the top and bottom cut off. > >You have two options: > >1. You shoot it on an FX body, where you'll get the entire >circle. >2. You take one shot horizontal, a second shot at a 33 degree >tilt, and a third shot at a 66 degree tilt, then in post you >combine the images to create the full circle. That only really >works well with static subjects, though. I used to do that >before I got my D3 and was shooting all DX. > >Luis Gonzalez >Everlasting Photography, Inc.
I choose option 1. Can't wait to try it on the D4 or D800 to find out if the image quality is better or worst than my D7000. I still do not know which I will get but I am 1st at my local camera store for both. If my Porsche sells before they arrive, I will get both. At this point, I only have $3k cash.
Sun 12-Feb-12 03:58 PM | edited Sun 12-Feb-12 03:59 PM by LuisGonzalezLT
Many DX lenses will give you that effect since their image circle is created that way. The difference is that the image is still rectilinear, covering a smaller angle of view than an actual 180 degree angle of view fisheye lens.
Oh, forgot to mention one thing. To get the absolute widest image circle from your DX lens on an FX body remove the hood/shade and all filters.