Thanks for your thoughts. I agree that figuring out the lenses won't be easy. Assuming it performs well, the 180-600 seems like a no brainer. Hope it won't be too tough to find one when they're released as I wouldn't buy the body until the lens is available. I'm trying to sort through the potential lens choices (in the price points that I could consider). I see the following:
- 180-600 with f/6.3 at 600mm, or f/9 at 840mm if I use a 1.4x TC
- AF-S 500/5.6 using the FTZ II adapter, or 700mm at f/8 with the 1.4x TC (can I use the Z 1.4x TC in this setup)?
- Z 400/4.5 or f/6.3 at 560mm using the 1.4x TC. This would be better than the 180-600 zoom at 400mm but it wouldn't provide much reach for BIF.
- The 800/6.3 is out of my price range
- Am I missing any other <$3k-ish long tele lens options?
For reference, the Fuji XF 150-600 f/5.6-8 gives me the following effective apertures on my X-H2s:
- f/8 at 600mm - equivalent to 900mm FOV and effective f/12 from a DOF perspective
So focusing on the long end, the Z 180-600 with the 1.4x TC gives me about one extra stop of DOF compared to the Fuji XF 150-600 (f/9 at 840mm for the Z180-600+1.4x TC compared to an effective f/12 at 900mm for the XF 150-600). I'll lose maybe a 1/3 of a stop in light gathering ability, i.e. the actual aperture (f/9 with the Z180-600 at 600 vs f/8 for the XF 150-600 at 600 but I have to assume that this will be more than made up for by the cleaner files coming from the Z8 vs the X-H2s. Yes? Also, because of the larger FF sensor on the Z8, I'm also assuming that I'll be able to crop the Z8 files much more and end up with cleaner overall images vs the X-H2s. Yes?
FYI, I'm focused on the tele options because I'm quite certain that I'll easily find relatively affordable Nikon Z lenses for landscape and Milky Way astro photography (the other two primary reasons for looking at the Z8).
I'd love to hear anyone's thoughts on my assumptions above and if I'm missing an obvious lens choice.
Thanks!
Steve
Hi Steve,
It is my pleasure!
I am quoting the much of the post as there are a few of things that I want to comment on and this would just be easier for someone referencing it in the future.
1) I wouldn't wait for the lens to become available to buy the body. It may take a while and you can spend the time getting used to the nuances of a new system
2) The question of reach and speed has never made for a more interesting thought as the current sensor sizes. In DX mode you get 20MP out of the sensor. That is plenty enough for a large sized print. Now this has the disadvantage of stopping down your DOF 1.5 Stops but it has the advantage of light gathering at the indicated F stop.
3) The reason I mentioned 2 is your conundrum with lenses, F stops, DOF and TCs. I am not a fan of using TCs when they get me down to F8 or lesser. They make for rather hairy AF situations (better than with DSLRs admittedly, but not something I would want to use); You could happily shoot at 400 or 500 mm wide open and then stop zoom in with the push of a button. A sort of an in-built TC if you will, albeit at the loss of resolution, but one that still allows you to print large sizes.
4) IMHO, you are overthinking reach. You are used to a crop sensor and the added reach it gives you, but, despite shooting Olympus before moving to Nikon APSC and eventually to Full Frame, I genuinely know that FF results are far superior (for me, I do not wish to get into a war with anyone, please, it is just my opinion) and the lesser reach has never been missed.
5) Take 4 with a pinch of salt because I am never the target market for the 800 mm lens. I think 500 mm is a sweet spot and getting it to 750 mm with crop mode or 700 mm with a TC is plenty good enough for any type of birding, but my thought process will always prioritise larger mammals for wildlife.
6) You will not be able to use Z mount TCs of F mount lenses.
7) You could consider the 500 F4 F mount lens. In G avatar it would easily fall within your budget (likely with some hunting) and pair it with a 3rd Gen 1.4TC for the F mount. If you can stretch however, the FL is the variant to get.
8) While the resolutions are comparable between your Fuji and the Nikon, the Pixel Density on the Z8 is lower and the files are cleaner. You also have the added advantage of a native ISO 64 which gets you really really close to those delicious FUJI GFX files (sadly still lacking in the colour space department) for DR and you will be able to really push the Post Processing whilst keeping a nice clean image. You may however, want to keep the histogram towards the right so that you collect all the data you need to make the image pop in the digital dark room.
Finally, buy the Z8 with the 24-120 F4 kit, add the 40 F2 as a low light street/family portrait option. Then build wider and longer as you see fit. I have a XT 30 and I shoot with it just for fun. It was my way of gauging my interest in mirrorless but no ways would I ever go back to any type of crop sensor. I would buy a GFX system for wildlife if I could afford both, but I would rather buy a Z400TC if that were the case.