Looking for input. I cannot justify all the money for a Nikon 70-200 f2.8 lens. I’m not a pro nor close to that level however I am fussy if you will over quality. I also push myself to produce the best I am capable of regardless of whether it’s work or fun. Also after 40 years in the automotive industry I also have a tendency to favor OEM products. That said, because of what I like to photograph, nature or birds etc., I find myself out in early morning or late evening hours when light is hard to come by. So, I have been watching reviews for Sigma’s new 70-200 sport lens but also really like the older Nikon 80-200 af-d. I also would like to hear from anyone who has used the Nikon f4 version of 70-200 range. I am currently shooting with a D7200 but also watching the prices for an upgrade, possibly a D500 or even a D750 replacement. I’m concentrating on glass as it will be useable with or when I upgrade the body.

I like to glance at the comments before wasting any time looking at a video. Comments from the above link:

Oh my gosh, they just suckered me into watching a 8 minute commercial. Grrr

Horrible, I would not buy any of these products. I actually thought the Triangle-Lens was a joke. This should be video oriented not DSLR, this is mostly for video.

If you are new to photography don't buy any of these accessories... they will not help you learn or improve the core skills you need to become a proficient photographer... if you are not new to photography then you already know this video is a pile of dogs doodoo...

5 Worst DSLR Camera Accessories You Shouldn't Have!

PLEASE, I DO NOT WANT A RAW VRS JPEG DISCUSSION. I have seen enough of those. You don't like jpeg, fine. But this is NOT the thread to explain to me and others why we should avoid jpeg.

My question is about real world experiences of those WHO DO USE JPEG in the area of degradation. I am asking if jpeg users have ever had to discard formerly good photos because they saw too much degradation after multiple edits. If so, how many edits? Were they saved at highest quality or compressed more each time?

As it pertains to my objective with photography, I am trying to get to the final answer to assure I am leaning to an optimal setup. Discussions with Adobe (Lightroom/Photoshop), X-Rite Color calibration, and NVIDIA on the Pascal Series dGPU, I have concluded [AND I HOPE YOU WILL POINT OUT IF ANYWHERE I AM WRONG] I will be starting with a laptop but realize to have the full color calibration and control, I will have to get an external monitor (X-Rite software, by design, set the limitation and X-Rite explains why). With that said, to maximize my color depth and gamut, I am trying to assure my laptop to be purchased has the right monitors (internal and eventual external), the right connector on the GPU, the right DisplayPorts, and externally connecting the right wire. I have targeted using an NVIDIA Quadro P2000 (an Adobe for LR/PS tested dGPU). The Quadro Pascal (P) generation GPU and generations after, have DisplayPort 1.4 support.

I am starting with a 14 bit RAW file for photography. From NVIDIA I have read 8-10-12 bit per channel RGB can be carried but I want to be sure I thoroughly understand what else I need to optimize the bit carried internally and externally to the monitors that are calling for it.
QUESTIONS:
What should I be using for connections, DisplayPort, and wire to assure I am getting the optimal in color depth and gamut?
What should I be specifying in both monitors to assure I am getting the optimal in color depth and gamut?
Does DisplayPort 1.4A fit into the picture? What does the connector look like? How do I know if the laptop has it?
Does DisplayPort over USB-C (aka DisplayPort Alt Mode for USB Type-C Standard) fit into the picture? What does the connector look like? How do I know if the laptop has it?
Is there a reason to look for a laptop with BOTH DisplayPort 1.4A and USB-C DisplayPort Alt Mode?
Can the data be carried to an external monitor over a Wi-Fi network? to and external Printer?

There are a few more questions below:

DA-07089-001_v07 NVIDIA QUADRO AND NVS DISPLAY RESOLUTION SUPPORT https://www.pny.com/File%20Library/Support/PNY%20Products/User%20Guides%20and%20Tutorials/Quadro/Quadro-and-NVS-Display-Resolution-Support.pdf
In the referenced document, why is there no mention of HDR? Does the P2000 support HDR?
Pg 8 There is no single maximum resolution for a given connector type. The maximum resolution is defined by a couple of constraints which are different for each connector type
• The maximum number of pixels per second that can be carried across the link: It doesn’t matter to the graphics processing unit (GPU) if those pixels are allocated onto a single large desktop refreshing slowly or a small desktop refreshing quickly. The maximum desktop size allowed by the GPU is 16 k × 16 k pixels – the different operating systems may have different limitations.
• The maximum bandwidth available on the link: This is most important to DisplayPort connections.
Pg 9 Is Create Custom Resolution available when using a laptop with an iGPU on board? If not, how about when I get an external monitor, does that offer any workaround?
Pg 10 Is Change Resolution available when using a laptop with an iGPU on board? If not, how about when I get an external monitor, does that offer any workaround?
Pg 9 DISPLAY COLOR DEPTH
Along with the frame-rate and resolution, displays and connectors can also vary the bit depth of the color information for each pixel. Standards like DVI define that each pixel must be made of a Red, Green and Blue component 8 bits each or 24 bits per pixel.
Pg 10 HDMI and DisplayPort offer 8, 10 or 12-bit per component as well. The display device defines the bit depth that it wants to receive, and the GPU will honor it if it can. What could constrain the bit depth?
Pg 16 Common Supported Maximum Resolutions (at CVT Reduced Blank Timings)

NVIDIA Pascal GPUs
― 5120 × 2880 at 60 Hz 24 bpp
― 4096 × 2160 at 60 Hz 36 bpp
― 2560 × 1600 at 120 Hz 36 bpp
Do I need Multi Steaming if I just want to watch a movie or work on a 4k video?
Pg 18 Single Connector 4K (From the table and its note, there appears to be a lot of capability with Pascal)
Notes: Pascal generation and generations after, the GPUs have Display Port 1.4 support.

Thank you.

Hello All,

Went to digital kicking and screaming several years ago and have been using a Nikon D200 for the past few years. I've been very happy with the results, however I seriously want to return to my roots in 35mm. I own several Nikon AI and AIS lenses and want to use them again. I know they can be used on my D200, however I want my 35 to be 35, not a 52.5.

I'm retired at this point so cost is a consideration. In looking into DX Nikons, I'm finding that the D600 or the D3 seem to fit what I'm looking for on paper. I primarily photograph landscapes, youth sports and wildlife.

I've been reading about problems with the D600 and some sort of spots. Did the D610 fix this problem? The D3 is somewhat problematic in finding one with a reasonable shutter count.

I will be using a lot of my manual lenses as I'm still old school and am not dependent on autofocus.

Suggestions? Other recommendations in an FX Nikon?

Thanks in advance for your replies and advice.