Best Nikon DSLR cameras under $800 - or around $800?

What DSLR cameras would you recommend in that price range? And what lenses would you use for landscape shots and macro pictures?

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Cannon, Nikon, or Fujifilm?

Cannon, Nikon, or Fujifilm?
Added (1). I'm a game developer and need a point and shoot camera at the $125 budget (by eBay standards.) As a game developer, I use it to take high quality reference images or pictures that I will turn into textures for video games.

The one I have looked at the most is the Fujifilm S8600. I don't know much about camera so, is there a better a camera like Canon or Nikon for my purpose?

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How to shoot portrait photographs?

I recently purchased a TPVideo1 Camlink forgetting it has no portrait functionality. I have been looking at L-plates but because I use my Nikon D5100 with a battery grip there isn t one that fits, also all the L-plates I have seen have quick release, but it is oriented the wrong way for my tripod.

https://500px.com/lc500px
Added (1). Tripod: https://www.google.co.uk/search?q=TPVIDEO1&safe=off&espv=2&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi3iMiAgsfJAhXHSRoKHcIpC_wQ_AUICCgC&biw=1280&bih=728#imgrc=v6AfKZ1xOQ4F9M%3A

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Consiglio per obiettivo motorizzato?

Salve a tutti, dispongo di una Nikon EM analogica e vi chiedo se fosse possibile integrarci un obiettivo motorizzato per la messa a fuoco automatica. Se così fosse, quale mi consigliereste su un budget piuttosto basso? Grazie!

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Nikon mount 70-200/80-200 shootout?

I'm looking for a fast telephoto lens for sports/candid shots.

Obviously, the Nikon 70-200 f2.8 is the most optically superior (although it has an older VR system). I know that it has issues when focusing at close objects (at 200mm it is actually close to 140mm when focused close).

Another choice is the Nikon 70-200 f4, which is lighter and cheaper, but still over a grand. Although it has an excellent VR system (4 stops), it has a smaller aperture which cannot freeze motion as well as an f2.8 aperture can.

I have also ruled out the sigma 70-200 and looked at the Tamron 70-200. I have read positive reviews from it. However, I am still a bit skeptical of third party lenses but I am still considering the tamron.

The last choice that I have is the 80-200 Nikon f2.8 which has no VR and has slightly inferior optics as well as slower AF and has no weather sealing.

I'm torn on which one to choose! Please be aware that I am on a tight budget and own a crop body as well as a full frame.

Thanks

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