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Nikon 85mm 1.8G Review
Focal length 85mm f1.8G.
Maximum aperture f/1.8.
Minimum aperture f/16.
Lens construction 9 elements in 9 groups.
Minimum focus distance 80 cm/2.62 ft (from focal plane).
No. of diaphragm blades 7 rounded.
Filter-attachment size 67mm.
Weight Approximately 350 g/12.4 oz.
The 1.8 G-lens has Silent Wave Motor SWM / AF-S making it possible to use on entry-level Nikon DSLR like D3000 and D5000 camera models.
The Nikon 85mm 1.8G is a very good prime lens for a portrait – Landscape – still life and long-exposure photography in my opinion.
This lens is well balanced for low contrast flare on maximum aperture f/1.8.
Focal length FX vs DX
The 85mm focal length has long been considered good for a portrait on full-frame / FX camera
85mm becomes equivalent to the perception of the naked eye in my opinion.
On a cropped-sensor camera / DX-camera, the 85mm becomes equivalent to 127mm on FX camera.
85mm focal length is usually my choice for portrait, close up head-shots photography, I like to use 50mm focal length for full portrait and three-quarter Length portrait.
I usually do not use this lens other than for portrait photography, Sometimes I have used this lens for long exposure and landscape photography.
I did a bokeh comparison between Nikon 50mm 1.8G vs Nikon 85mm 1.8G wide open and the Nikon 85mm render much more bokeh effect, to reach the same bokeh as the Nikon 50mm@ f/1.8 – you will need to stop the Nikon 85mm lens down to f/3.5 – then the bokeh will look the same as Nikon 50mm 1.8 @ f/1.8. shoot from the same distance.
I always like to test the strength of my lenses in long-exposure photography, I can see so much of the lens strength or weakness in just a few shots, the Nikon 85mm 1.8G is GOOD.
Disadvantages in my opinion.
The only disadvantages, in my opinion, is focus distance, this lens has Minimum focus distance of 80 cm/2.62 ft, too many times have I find myself in the situation wanted closer shoots, so I wish this lens could focus closer than this.