Comparisons: 800mm f5.6E FL and 800mm f6.3S PF Nikkors

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Here follow a selection of images taken over the past several months with both lenses, with/without their respective teleconverters. I have built up a sizeable database since mid 2022, when time and conditions permitted. I took all these primarily with the aim of trying to define the differences in quality and performance between the pair of 800's and their combinations for my own work. I've been particularly interested in the limits of these super telephotos with the respective Nikon Teleconverters. This especially applies to the attributes of the unique 1000 f7.1 that's enabled with the 800 f5.6E FL paired with its Bespoke TC125.

A few useful threads on these 800mm Nikkors are on BCG, including questions about their differences etc. There's this long thread around Steve's perceptive review of the 800 PF. I shared a few examples last year, as I find the results using the 800 f6.3S PF with its TC's were pleasantly surprising in many events. These included subjects needing more telephoto 'reach', or where tighter framing improved compositions.

Anyone who's searched for detailed reviews of Nikon's legendary 800mm primes appreciates their scarcity. I know only of this benchmark review some years ago by Photography Life of the 800 f5.6E FL, which set new standards in optical quality at its launch. Nasim Mansurov described the challenges he encountered in seeking quantified data. In contrast, I found the most recent review by PL (Feb 2023) of the 800 PF disappointing and distinctly wanting, and the methodology of their MTF results is unclear, including how the latest charts of these two Nikkors compare. Camera-lens shake is a huge challenge and Nasim M emphasized how long it took to minimize vibrations in testing the 800E.
EDIT: subsequently, in July 2023 PL published this comparison :

Most recently, Thom Hogan published his review of the 800 PF, but didn't include examples, particularly with Teleconverters and there's no direct comparison to the 800 f5.6E FL. Arguably the 800 PF review by @Steve, mostly handholding the lens, is a solid example of how a field test can inform and guide prospective owners of a 800 PF, who plan to handhold the lens outdoors on wild subjects.

Edit: Brad Hill added his review with several revealing images using the 800 PF.

My method is a field test(s) but within more standardized conditions, including a fixed base on a beanbag or tripod; this is in any case how one has to shoot all 4.6kg of the F-mount 800. Instead of a standard lens testing target, I prefer real world ie representative subjects, including wildlife. This is where a set of the same subjects (common birds are ideal and so are cooperative pets). The majority are in one location (the environs around my residence). This helps measure subject distances with Nikon Rangefinder binoculars, which include stations often used by the subjects. The testing has extended to subject distances just over 50m.

Sometimes the local birds and my cats stay still long enough, to allow switching TCs, or even lenses. The flocks of local Helmeted guineafowl move around seasonally, and seem to shift roosts subject to predator activity. They helped this project by roosting in big trees close by; and before bedtime they were kindly visiting the bird table to scratch underneath. So much that I recognize a couple of individuals by their combs, and i managed to photograph a series of images on different days of these birds on the same spots. The Hadeda Ibis in the peri urban spaces around here often become habituated. One friendly chap would often stand absolutely still and contemplate life in between probing the grass - kind of him; as I could switch optics, as he stood almost frozen to the spot for a few minutes.

In due course, I'll add a photo below of the tripod setup, which helps quicker changes and more direct comparisons. I tried to detect and avoid obvious conditions of haze, which is actually more common than I'd expected. So I was shooting towards the late afternoon, which was also when my cats cooperated (sort of) and the guineafowl flock arrive to roost in big trees at the edge of my garden.

As there are very few direct comparisons of these 2 remarkable lenses, these may be of wider interest. Bottom line both primes are excellent, although I conclude the edge goes to the 800 f5.6E, including creamier bokeh. I find the results with the TC's interesting....

Exported from NX Studio or LR Classic, but I kept Post-Processing to the minimum. Some are freeholding the rig (in the case of the 800 PF), but the majority were either on a beanbag over an outside wooden table or on heavy duty Gimpro gimbals on a Leofoto LS323. Obviously it is very difficult to standardize ISO (especially with the TC's), let alone distances with such subjects. I've only shared images taken with Z9. The reasons are to avoid AFFT issues and mirrorslap, as well as stick with the same 45mp sensor, and obviously there're the advantages of the FTZ and shooting below f8. [edited and augmented]

800 f5.6E FL only
Winston 800 f5.6E FL_Z9A5655_142_Z9A5655.JPG
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800 f5.6E FL only
Rigby 800 f5.6E FL_Z9A2112_147_Z9A2112.JPG
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All of the following are with the Bespoke TC125E on the 800 f5.6E FL
Malachite sunbird male 800 f5.6E TC125_Z9A8704_064_Z9A8704.JPG
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100% crop of above:
Malachite sunbird male 800 f5.6E TC125 100%_Z9A8704_065_Z9A8704.JPG
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Hadeda Ibis fledgling begging from parent (Custom Area AF rectangle was across the bill of the latter) which demonstrates shallow depth of field. Note the atmospheric conditions were not ideal even though the ibises are at ~20m
Hadeda Ibis begging 29Dec2022 800 f5.6E TC125_Z9A2656_090_Z9A2656.JPG
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100% crop:
Hadeda Ibis begging 29Dec2022 800 f5.6E TC125_100%_Z9A2656_091_Z9A2656.JPG
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Attachments

  • Malachite Sunbird male 800 f5.6E TC125 100%_Z9A8842_082_Z9A8842.JPG
    Malachite Sunbird male 800 f5.6E TC125 100%_Z9A8842_082_Z9A8842.JPG
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800 f5.6 - TC14 III

Hadeda Ibis @11m
Hadeda Ibis 800 f5.6E TC14_Z9A7744_072_Z9A7744.JPG
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Guineafowl at 23m
Guineafowl 800 f5.6E TC14 23m_Z9A0699_151_Z9A0699.JPG
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Guineafowl at 35m
Guineafowl 12Dec2022 800 f5.6E TC14_Z9A0752_041_Z9A0752.JPG
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100% crop of above

Guineafowl 12Dec2022 100%crop 800 f5.6E TC14_Z9A0752_042_Z9A0752.JPG
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Attachments

  • Guinea Fowl 800 f5.6E FL TC14_Z9A0583_145_Z9A0583.JPG
    Guinea Fowl 800 f5.6E FL TC14_Z9A0583_145_Z9A0583.JPG
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800 f5.6 - TC2 III

Hadedah Ibis @8m
Hadeda Ibis 800 f5.6E TC2 _Z9A7710_075_Z9A7710.JPG
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100% crop of above
Hadeda Ibis 800 f5.6E TC2 100%_Z9A7710_076_Z9A7710.JPG
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Guineafowl fledgling @20m
Guineafowl chick 13Dec2022 800 f5.6E TC2_Z9A1925_058_Z9A1925.JPG
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100% crop of above

Guineafowl chick 13Dec2022 100% 800 f5.6E TC2_Z9A1925_059_Z9A1925.JPG
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Rigby 23 Dec2022 800f5.6E TC2_Z9A1930_093_Z9A1930.JPG
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100% crop of above
Rigby 23 Dec2022 800f5.6E TC2 100%_Z9A1930_094_Z9A1930.JPG
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800 f6.3S PF
Gunieafowl in the grass
Guineafowl 800 f6.3S PF_Z9A0068_077_Z9A0068.JPG
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100% crop of above
Guineafowl 800 f6.3S PF 100%_Z9A0068_078_Z9A0068.JPG
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Cape Robin in scrub illustrating front and rear bokeh
Cape Robin in scrub 800 PF_Z9A4463_138_Z9A4463.JPG
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Karoo Prinia singing after the rain
Karoo Prinia 800 f6.3S FL_Z9A3055_146_Z9A3055.JPG
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Arrow-Marked Babblers allopreening a group member, who looks to be in a hypnotic state of 'Babbler-Bliss'
Babblers allopreening_May2022-9681.jpg
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Waterbuck Calf at Dusk
Waterbuck fawn in sunset_chiaroscuro_June2022-8870.jpg
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800 f6.3S PF - ZTC14

Hadedah Ibis @11m
Hadeda Ibis 800 f6.3S PF ZTC14_15m Z9A8026_079_Z9A8026.JPG
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100% crop of above
Hadeda Ibis 800 f6.3S PF ZTC14 100%_Z9A8026_080_Z9A8026.JPG
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Speckled Pigeon
Rock Pigeon 800 f6.3S ZTC14_11m Z9A8065_070_Z9A8065.JPG
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100% crop of above
Rock Pigeon 800 f6.3S ZTC14 100%_Z9A8065_071_Z9A8065.JPG
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Guineafowl @11m
Guineafowl 12Dec2022 800 f6.3S ZTC14_11m Z9A0557_015_Z9A0557.JPG
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Guineafowl @23m
Guineafowl 12 Dec2022 23m 800 f6.3S ZTC14_Z9A0667_083_Z9A0667.JPG
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100% crop of above


Guineafowl 12 Dec2022 23m 800 f6.3S ZTC14 100%_Z9A0667_084_Z9A0667.JPG
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800 f6.3S PF - ZTC2

Guineafowl @11m
Guineafowl 25Dec2022 11m 800 f6.3S ZTC2_Z9A2416_044_Z9A2416.JPG
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100% crop of above
Guineafowl 25Dec2022 100%crop 800 f6.3S ZTC2_Z9A2416_045_Z9A2416.JPG
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25m
Winston 29Jan2023 25m 800 f6.3S ZTC2_Z9A4819_038_Z9A4819.JPG
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100% crop
Winston 29Jan2023 100%crop 800 f6.3S ZTC2_Z9A4819_047_Z9A4819.JPG
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Guineafowl @51m
Guineafowl 25Dec2022 51m 800 f6.3S ZTC2_Z9A2090_033_Z9A2090.JPG
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100% crop
Guineafowl 25Dec2022 100% 800 f6.3S ZTC2__Z9A2090_060_Z9A2090.JPG
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Thanks, Patrick
I also have a few images with the 400 f4.5S + ZTC2 (and also 400 f2.8E FL + TC2 III), which are likely to also be of interest. [EDIT: I took this for fun, as the longer lens was inside.... and ISO was too high. The quality is a pleasant surprise, which I decided to share here.]

@8m
Burton Jan2023 400 f4.5S ZTC2_Z9A3875_050_Z9A3875.JPG
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Crop
Burton Jan2023 100%crop 400 f4.5S ZTC2_Z9A3875_051_Z9A3875.JPG
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Burton 400 f4.5S TC2_Z9A3887_152_Z9A3887.JPG
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Thanks for showing us your testing results, very informative. Money aside, Can you use and justify keeping both 800mm?
Definitely justifiable.
Where I'm based 'out in the sticks' and especially when travelling, a realistic Redundancy of key lenses is essential. So, this compounds gear carried in addition to 2 or more cameras. It was very clear after a weeks out with the 800 PF all day, every day, how any loss of this lens will be a disaster. There is likely to be no remedy even weeks later.
My images captured with the 800 +ZTC14 underscore the value of 1120m, and I can also get to 1600 in emergencies (albeit often challenging for light haze et al)

Once the 800 PF landed, I also was no longer using my 400 f2.8E FL and was fortunate to get a decent price. Mid 2022 created the perfect market storm for buyers. There were many Used F-mount telephotos, which retailers were struggling to sell on; so they dropped prices drastically.

At one stage I counted 5 copies of the 800 E on sale in S Africa over several weeks, besides mine. This was probably the spin off of trade ins to buy into the Z9 and the new Z glass. Long story short, this return covered the Used 800 f5.6E FL. As I continue to rely on DSLRs, this lens adds significant range with a 500 PF and 70-200 f2.8E and 180-400 TC. The 800E is also an excellent 1000 f7.1. I much appreciate having this relatively fast, and unique 1000mm. Obviously all these E F-mounts fit DSLRs and MILCs.

The 800 E is very definitely the king in a Destination, or Hide, Kit: this slug literally does have big challenges in its handling and travel etc! The ZTC14 is impressive, atmospherics permitting, I confess I'm surprised with the F-mount TCs : really good results with my copies of these vIII teleconverters on the 800 E. My impressions are the 800 E has an advantage over the 800 PF over longer distances, but as already emphasized by many of us 800 owners, this advantage is too often academic, because challenging atmospherics bedevil image quality of subjects at 40m or further distances.

The integrated VR and IBIS of the 800 PF is far superior with the lighter rig. If you only own a Z system, this is the obvious choice. In comparison, I find the 800E is very very sensitive to vibrations. I've learned never to underestimate this risk. This difference really underscores a less appreciated and probably one of the truly outstanding benefits of Synchronized VR to wildlife photographers, thanks to the remarkable engineering. Synchro VR is often a massive positive of the Z Mirrorless system for wildlife photographers.

Needless to say, the 800 PF is so much more flexible all round. Nikon's engineers pulled off an undisputed triumph in the 800 PF. I've certainly appreciated what this technology really means in practice, after shooting these 8 Hundreds side by side over the past 9 months.

and which one would you keep if you could only have one of them.
Tricky question! If it's a dual F and Z system, it has to be the 800 E to use on DSLRs as well as MILCs.
For a purely MILC system the 800 PF has significant advantages of ergonomics and Synchro VR, and the image quality is close to that of the 800E. This is irrespective of the price difference (although Used prices have abseiled).
 
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Thanks for the comparisons. Very interesting and useful. It looks to me that all of the combinations you tested are good enough to be quite useful.

For me, given much of my shooting is done while walking, hiking, in a kayak, canoe or zodiac, or traveling, the smaller size and weight of the Z 800 mm PF is compelling. I'm glad it holds up as well as it does optically, including with TCs, against the larger F 800 mm f5.6. I've used my Z 800 mm PF with the 1.4x TC and liked the result. Have not tested it with the 2x TC yet, but hope to do so in the next few weeks.

I just got back from a trip with Brad Hill in Barkley Sound on Vancouver Island. Lots of fun. Used the Z 100-400 and the Z 800 mm PF, with the Z 24-120 for some seascapes. Shooting handlheld from a zodiac in most cases. The Z 800 mm PF was my most used lens, except when whales or other marine mammals were close. Brad was also using his Z 800 mm PF, along with the Z 400 mm f2.8 TC, Z 100-400 mm, and Z 24-120 mm lenses.

I agree that having a backup lens is important. For me, the 500 mm PF with the 1.4x TCIII (or 1.7x and 2x TCs) will generally fill that role for the Z 800 mm PF. Not a perfect substitute, but decent if needed.

Your photos from the Z 400 f4.5 make me think I need to consider getting that lens. Question would then be whether to keep the 500 mm PF.
 
Great set of images. Just goes to show the value of high quality glass. Those 100% crops of the eye really tell the story of just how sharp the image is. Until I did some similar testing I did not fully realize how tiny the feathers were that make up the eye ring.
 
Thanks to you all for your kind feedback 😸😸

wow ! I have two all black cats that look like that - but no white. Now I'm going to have to rent that z4000 f4.5 again!! LOL
Thanks! He's a character of note, and very affectionate when he chooses, but he is basically feral as no one else can go near him except me. Pitched up on the farm here, obviously dumped, as he was hiding in a hedge still with his milk dentition. It took me 2 weeks to trap him, back in 2018!
A truly all black black cat is not as common. The majority have one or more small patches of white fur as they have inherited the "white-spotting" gene. Genomics has made great advances in understanding cat genetics, including resolving aspects of melanism across the Felidae; of the 37 living species of cats, 11 can have black coats. They include leopard and jaguar.
You might have seen the recent book by Burrard-Lucas 'Black Leopard', which is the story of his camera traps and Beetlecam etc. The book's finale is set in Kenya photographing the black leopard of Laikpia. Actually, the conservancy now hosts a friendly melanistic leopardess, who's become quite the media star!
 
Test setup on Gimpro Gemini Dual-Gimbal and Leofoto tripod (models at rest). Besides its unique function for aligning two rigs on the same subject, here this heavy duty gimbal (see video) speeds up switching the Z9 between the lenses. Only Gimpro has all the safety and adjustment features, and it's very well made aircraft spec aluminum alloy using sealed needle bearings.

Only Gimpro has all the safety and adjustment features, and it's very well made using aircraft spec aluminum alloy with sealed needle bearings.

The Leofoto long lens plate is to try and mitigate any sources of vibration/alignment in the FTZ-TC-lens train. In comparison, the Z mount tolerances are distinctly tighter. (I stripped the silver clamp off a FotoPro Eagle gimbal to attach the Leofoto plate to the camera base, this FotoPro clamp is flimsy but it's safe enough in this role to support/lock the camera.)

Test setup tripod gimbal 800 f5.6E TC2_ND65154_173_ND65154.JPG
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Test setup tripod gimbal 800 f5.6E TC2_ND64521_175_ND64521.JPG
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Test setup on Gimpro Gemini Dual-Gimbal and Leofoto tripod (models at rest). Besides its unique function for aligning two rigs on the same subject, here this heavy duty gimbal (see video) speeds up switching the Z9 between the lenses.

The Leofoto long lens plate is to try and mitigate any sources of vibration/alignment in the FTZ-TC-lens train. In comparison, the Z mount tolerances are distinctly tighter. (I stripped the silver clamp off a FotoPro Eagle gimbal, because it's too flimsy but safe enough here to support/lock the camera.)

View attachment 57676



View attachment 57677
Wow! Iris a good montage and I love the two cats who are helping with this set up !
 
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