Seen your comments in your for sale thread on the X100V, what settings are you using for capturing your daughter ? It certainly can handle moving subjects, i've never had an issue when using zone on any Fuji.
Bought a Zeiss lens from Amazon once, got sent a pair of kiddies binoculars instead and spent hours trying to get a refund while they basically accused me of lying. Put me off ever buying camera gear from them again. Just a heads up!
You have got me thinking. I used the 70-200 with the 1.4x yesterday and it was excellent. I have the 100-400 too and it is a great lens but I really dislike trombone style lenses as they are so much harder to keep dry in poor conditions and I don't like the handling as much. I was shooting a charity walk and it absolutely bucketed down most of the day. I'd usually use the 100-400 but chose the 70-200 and 1.4 as a simple poly bag and elastic band kept it nice and dry. I might do some tests as it would be good to free up some cash and I don't really use the 100-400 very often.
Bought several lenses from Amazon over the years, never had an issue including returns. Sounds like you just had a bad experience
The 70-200mm is nicer handling but I sometimes use the 100-400mm with the 1.4x TC so the 70-200mm can’t really be a substitute for me.
I have the 200-600 so would use that if I needed to get to 600.
That's a great combo (assuming the 70-200mm with 2x TC stands up, which it appears to do), it's just a shame for me that the 200-600mm is as heavy as it is.
A lot of photoshopping going on to remove cars and people next to the subjects. Due to the feedback from the last show I did try various apertures this time, my preference is still generally wide open
The max I took it too yesterday was f2 (except for interiors) but it wasn't for me
The max I took it too yesterday was f2 (except for interiors) but it wasn't for me
It's not so much about isolating the front of the car it's 'the look' that I like that I can't quite describe. It's a cross between pop, miniaturisation and brenizer, I guess that's the best way to describe it, or maybe the most confusing way to describe itI think is how you want the photo to look, do you want to isolate the car from the background, or just the front of the car, I prefer the former, you prefer the latter
I only use the 200-600 for infrequent bird photography. The weight is fine for me shooting level and I would use a monopod for that anyways. However when you are pointing the lens down as I was at Bempton Cliffs it was a workout. The lens is a brilliant bit of glass for the cash though
I’m like you I would take the photo at whatever iso was needed then see what it’s like or what I can do on the PC.Each to their own and we obviously have very different views on this but we're right back to my original point here. I'm not going to stand with a camera and not take a picture because I think the IQ performance will be too poor, I'm going to take the picture if at all possible because at least then when I have it on the pc I can make a choice.
I've had a look at the A7IV sample gallery DPR but I found them useless. I suppose one day when my A7 conks I'll get to try a modern camera with a very high ISO setting. I can't say 100% yet but I bet I'll use those high ISO's at some point to get a picture
I'm not sure we do have different views as you said you use 25,600 as your max which is the same as what I use? The problem is cameras with much higher max isos don't have that value because they are much better at high iso, it's just it sounds better and the fact they're almost completely unusable at that iso doesn't matter. I've used cameras with a 1/2.3in sensor that were noisy above iso 100 and had a absurd high iso setting of 3200 which produced pictures that looked like an abstract painting the high iso noise reduction was so severe.Each to their own and we obviously have very different views on this but we're right back to my original point here. I'm not going to stand with a camera and not take a picture because I think the IQ performance will be too poor, I'm going to take the picture if at all possible because at least then when I have it on the pc I can make a choice.
I've had a look at the A7IV sample gallery DPR but I found them useless. I suppose one day when my A7 conks I'll get to try a modern camera with a very high ISO setting. I can't say 100% yet but I bet I'll use those high ISO's at some point to get a picture
When I do motorsports I carry my camera, 70-200mm, 100-400mm, 50mm and 1.4xTC, I think if I subbed the 100-400mm for the 200-600mm it would be too much. My shoulders and back ache after walking round the circuit all day as it is.
I think is how you want the photo to look, do you want to isolate the car from the background, or just the front of the car, I prefer the former, you prefer the latter
I don't do much motorsport but the last couple of times I have just taken a single lens and body. If I was taking more I would use my wheeled case
I've always thought they look a lot of hassle when I've seen people dragging them around as a lot of the time you're on grass or gravel. I prefer a backpack hence why I don't want the weight to get too ridiculous. I also tend to have my lunch and a 2l bottle of water in the bag too
Agreed, this was shot at f2 and it doesn't have the same qualities and pop to my eyes.
Agreed, this was shot at f2 and it doesn't have the same qualities and pop to my eyes.
A1_05659-Edit by Toby Gunnee, on Flickr
I agree that there is not so much separation, but the car looks more 'whole' (less front and blur!)
Beauty is in the eye of the beholder and all thatBut I like that!!!
I prefer this 
www.sonyalpharumors.com
This is a lens I’ve been asking for for years, I hope they decide to make it.
Tamron patented a new 17-50mm f/4 Full Frame E-mount lens with internal zoom | sonyalpharumors
Asobinet spotted a newly published patent that describes the optical design of this 17-50mm f/4 Full Frame E-mount lens with internal zoom: Focal length: 17.520-48.483 F-value: 4.120 Half angle of view: 110.747-47.366 Image height: 21.633 Overall length: 134.456 Back focus: 18.462-50.815
plus it's f4 although I do appreciate that making it f2.8 will have a knock on effect on size, weight and price 
F/4 might as well gaffs tape on a milk bottle and use that.This is a lens I’ve been asking for for years, I hope they decide to make it.
Tamron patented a new 17-50mm f/4 Full Frame E-mount lens with internal zoom | sonyalpharumors
Asobinet spotted a newly published patent that describes the optical design of this 17-50mm f/4 Full Frame E-mount lens with internal zoom: Focal length: 17.520-48.483 F-value: 4.120 Half angle of view: 110.747-47.366 Image height: 21.633 Overall length: 134.456 Back focus: 18.462-50.815
Too much for me anyway even though I'd like a bit more reach at times, I was going to a race and packed the 150-600mm then thought am I really going to carry this all weekend? Then decided not to take it and after ending up walking 25 miles I was glad I made that choice, the 100-400mm is as big as I can manage to carry around with me.
Would make a great travel lens for me, could be a genuine replacement for my 24-70mm and 16-35mm. f2.8 isn't needed for me with a lens like this as I'm shooting at f8-11 99% of the time.Size, weight and price need to be confirmed
A9A02454 by Chris Harrison, on Flickr
FoS 2023 by Chris Harrison, on Flickr
FoS 2023 by Chris Harrison, on Flickr
Finally got around to looking at this on the computer, to my eyes the 70-200mm with 2x TX at 400mm is much softer than the 100-400mm at 400mm with both at f5.6. If you stop the 70-200mm down to f8 it's still softer than the 100-400mm at f5.6, if that's true to life in the real world the 2x TC is definitely not for me.2x TC was dire with the original 70-200mm f2.8 which made me sell it and get the 100-400mm.
you can use this tool for some comparisons
Sony FE 100-400mm F4.5-5.6 GM OSS Lens Image Quality
View the image quality delivered by the Sony FE 100-400mm F4.5-5.6 GM OSS Lens using ISO 12233 Resolution Chart lab test results. Compare the image quality of this lens with other lenses.www.the-digital-picture.com
Looks to be about usable if you are willing to stop down to f8 with the new GMii version.
