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Author Topic: FullFrame 85mm 1.8 equivalent for MF  (Read 1009 times)

MichaelEzra

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FullFrame 85mm 1.8 equivalent for MF
« on: August 29, 2020, 02:26:17 pm »

I am contemplating the purchase of Tamron SP 85mm f/1.8 Di VC USD for use on Nikon Z7 and D800e.
But, as I also have 645z, I am also curious, what is the closest equivalent for such lens for 645z.

I could not yet find any comparisons of that lens to medium format, so I'd appreciate any input. Thank you!
« Last Edit: August 29, 2020, 03:04:24 pm by MichaelEzra »
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Jim Kasson

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Re: FullFrame 85mm 1.8 equivalent for MF
« Reply #1 on: August 29, 2020, 04:58:11 pm »

I am contemplating the purchase of Tamron SP 85mm f/1.8 Di VC USD for use on Nikon Z7 and D800e.
But, as I also have 645z, I am also curious, what is the closest equivalent for such lens for 645z.

I could not yet find any comparisons of that lens to medium format, so I'd appreciate any input. Thank you!

Same image height: 117mm f/2.5
Same image width: 104mm f/2.2
Same image diagonal: 108mm f/2.3

MichaelEzra

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Re: FullFrame 85mm 1.8 equivalent for MF
« Reply #2 on: August 30, 2020, 09:36:08 am »

Thank you Jim. Looks like there is nothing quite similar for 645z. Tamron it is then:) With 1.8 the eye AF on Z7 should be quite handy.
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kers

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Re: FullFrame 85mm 1.8 equivalent for MF
« Reply #3 on: August 30, 2020, 10:51:43 am »

Thank you Jim. Looks like there is nothing quite similar for 645z. Tamron it is then:) With 1.8 the eye AF on Z7 should be quite handy.
So why not choose nikon own 85 mm 1.8 s ?
From my own experience and testsites it is a marvel.
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Pieter Kers
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jwlimages

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Re: FullFrame 85mm 1.8 equivalent for MF
« Reply #4 on: August 31, 2020, 10:10:23 pm »

I am contemplating the purchase of Tamron SP 85mm f/1.8 Di VC USD for use on Nikon Z7 and D800e.
But, as I also have 645z, I am also curious, what is the closest equivalent for such lens for 645z.

Pentax 645 120mm f/4 macro? Yes, not as wide - an f/2 would be ideal, but it doesn't exist. The 120mm macro is a pretty amazingly sharp lens, plus it's vintage, so cheap relative to new lenses.

John
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MichaelEzra

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Re: FullFrame 85mm 1.8 equivalent for MF
« Reply #5 on: September 01, 2020, 03:43:31 pm »

I do have 120 F4 and 150 2.8 for 645z and both are excellent lenses.
For Nikon, I wanted to get the F mount, so I could use it on Z7 and D800e. Had I only had Z7, 85mm S would be the absolute top choice. The only issue I see with that lens is cat's eye bokeh towards the corners (which likely was a compromise for containing the lens size and weight, that is consistently maintained in the Z system).
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Conner999

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Re: FullFrame 85mm 1.8 equivalent for MF
« Reply #6 on: September 03, 2020, 08:31:03 am »

Zeiss 135/2 APO covers the sensor (same as Fuji, X1D, etc) and is well regarded on the GFX. The Zeiss 100/2 Macro might, but is infamous for colour fringing.
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