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Sometimes I can't work DXO out. They've just released scores for the 24-70mm f4 and it 'only' scores 19mpix sharpness on the Z7, yet my copy is super sharp. 19mpix is 2mpix behind the 24-70mm f2.8 mounted on the D810 and imo my copy of the 24-70mm f4 is noticeably sharper than any of the three 24-70mm f2.8's I owned. What are other's finding that have used both?
Roger tests at least 10 copies of each lens so is consistent if nothing else.Looks to me like he does pretty much the same thing as DXomark
I wouldn't take either too seriously, real world use is all that matters. I've seen both of these show poor performance on lenses in the past that many actual users of the same lenses thought were fantastic.
Do you find much difference in frame rate/black out when shooting with the Z6 in cont hi (5.5fps) and the D810 at 6fps?
I found that which is why I'm selling the D810 and bought a Z7!
The Sony crowd will just love that! But, honestly, you find it a decent, sharp lens. That's all that matters, that won't change because the numbers weren't what you expected. The same site gave some of the cheaper M43 lenses terrible ratings and I found them to be just fine.
Oi!
At least say "Some of the Sony crowd..."
Nope not remotely the same. Roger is completely transparent about his testing, there is meaning to his MTF measurements and he is a reliable source of information as long you understand how he does his testing. You can even chat him up and he'll fully reply to your questions as long as they are meaningful. He is also a member of dpreview where I have had several conversations with Roger and co.Looks to me like he does pretty much the same thing as DXomark
I wouldn't take either too seriously, real world use is all that matters. I've seen both of these show poor performance on lenses in the past that many actual users of the same lenses thought were fantastic.
Nope not remotely the same. Roger is completely transparent about his testing, there is meaning to his MTF measurements and he is a reliable source of information as long you understand how he does his testing. You can even chat him up and he'll fully reply to your questions as long as they are meaningful. He is also a member of dpreview where I have had several conversations with Roger and co.
Dxomark on the other hand is a blackbox, they aren't transparent about their testing, full of contradictions especially on their mostly meaningless and/or pointless p-mp sharpness score they have invented. But dxomark has sharpness field maps that are actually somewhat reliable especially to judge how lens performs across the frame at different apertures.
It's completely confusing numbers to me, still can't get my head around MTF's This means nothing to meCool, it's still all semi confusing numbers to me
Cool, it's still all semi confusing numbers to me but it's good someone does it for those who care about this stuff. Being a member of DPR is a con though lol, even the mods on there are below the trolls on here yes, I am a member, but it's much more a drop in and out quickly kind of place.
I do peep at dxomark now and then when researching a lens, but always then ask myself why I don't just go by actual user reviews. Even someone who's testing 10 copies rigourously does not have time to actually get their ass out and use the thing in the real world, not for very long at least.
They will, especially as they score the poorly regarded Sony Zeiss 24-70mm f4 higher than the Nikon AF-S 24-70mm f2.8The Sony crowd will just love that!
There is a how to read MFT chart guide on that pageIt's completely confusing numbers to me, still can't get my head around MTF's This means nothing to me
https://www.lensrentals.com/blog/2019/05/just-the-mtf-charts-micro-43-lenses/
They will, especially as they score the poorly regarded Sony Zeiss 24-70mm f4 higher than the Nikon AF-S 24-70mm f2.8
The worrying thing is that I've used DXO when looking for lenses in the past (not solely thankfully) but this has made me realise that it's a load of poop. Having used all 3 lenses I can say that the 24-70mm f4 is the sharpest I've used.
TBH I've tried to understand them in the past but it still alludes me. Bit odd really as technical stuff is usually my forte, I guess I just have a mental block with thisThere is a how to read MFT chart guide on that page
As long as you can get the gist it's probably good enough for your use case. If you spend a little time reading and comparing a few of those you'll see some are better than others. That basically all you need to work out rather than what each individual number means
Yeah, I did email them a while ago as they still haven't tested any lenses on the D850 yet, and just having a quick look they haven't tested Sony lenses on the A7iii or A7Riii either.I wonder, as nand mentions above, do they just test one copy and run with it? Where others test multiple copies - it would be unusual for them to happen to get a bad copy of such an up to date lens but not impossible. As Nand also points out they're never transparent about their testing, could have been a rushed job - they seem to be lagging on their testing these days, plenty of gaps in their lens and sensor listings.
TBH I've tried to understand them in the past but it still alludes me. Bit odd really as technical stuff is usually my forte, I guess I just have a mental block with this
Yeah, I did email them a while ago as they still haven't tested any lenses on the D850 yet, and just having a quick look they haven't tested Sony lenses on the A7iii or A7Riii either.
Just seen this on Thom Hogan's site, does make you wonder?I wonder, as nand mentions above, do they just test one copy and run with it? Where others test multiple copies - it would be unusual for them to happen to get a bad copy of such an up to date lens but not impossible. .
They will, especially as they score the poorly regarded Sony Zeiss 24-70mm f4 higher than the Nikon AF-S 24-70mm f2.8
The worrying thing is that I've used DXO when looking for lenses in the past (not solely thankfully) but this has made me realise that it's a load of poop. Having used all 3 lenses I can say that the 24-70mm f4 is the sharpest I've used.
Whilst real world reviews are subjective I think I will take more from them than DXO in the future as they tend to go with my findings, ie the Sony Zeiss 24-70mm f4 is a bit soft considering it's price point, yet the Nikon is super sharp.
Just seen this on Thom Hogan's site, does make you wonder?
Screen Shot 2019-05-30 at 08.35.06 by TDG-77, on Flickr
Either way, mine is sharp as a sharp thing so I'm happy
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now this one really does work ---not surprisingly as I have a weakness for tumbledown graveyards but the variety of tones is really nice here.
Thanks David. It's a nice wee lens - well, not so wee! It was windy and I'd deliberately chosen a slowish (1/20) shutter speed to allow the leaves to blur. Also it was a very bright day, hence the "white-out" in the background.now this one really does work ---not surprisingly as I have a weakness for tumbledown graveyards but the variety of tones is really nice here.
I was going to have a play with Silver FX but my copy of Nik Collection didn't transfer across to my new computer for some reason, and now that google no longer own it it's not free anymoreThanks David. It's a nice wee lens - well, not so wee! It was windy and I'd deliberately chosen a slowish (1/20) shutter speed to allow the leaves to blur. Also it was a very bright day, hence the "white-out" in the background.
I was going to have a play with Silver FX but my copy of Nik Collection didn't transfer across to my new computer for some reason, and now that google no longer own it it's not free anymore
Looks like the original downloads are still available ... scroll down to 'Links'...I was going to have a play with Silver FX but my copy of Nik Collection didn't transfer across to my new computer for some reason, and now that google no longer own it it's not free anymore
Same here. Ended up paying for it. Not sure I’ve used it since.
Looks like the original downloads are still available ... scroll down to 'Links'...
https://photorumors.com/2016/03/24/nik-collection-now-available-for-free/
Looks like the ones referred to on those links are a newer version than mine. I'm not going to risk updating though ....Looks like the original downloads are still available ... scroll down to 'Links'...
https://photorumors.com/2016/03/24/nik-collection-now-available-for-free/
TBH if I didn't already have a copy available I would download it now 'just in case'Looks like the ones referred to on those links are a newer version than mine. I'm not going to risk updating though ....
On the whole, I find Thom tends to know what he's talking about even if I don't invariably agree. My 24-70 is perfectly OK. I'm slightly more concerned about the Camerlabs review of the 14-30. Looking closely at the samples at 14mm, there isn't a dramatic improvement at the right corner as you stop down and the background as a whole is a bit lacklustre. Other reviews often rave but they compare with something like the 14-24 instead of primes at 14.Just seen this on Thom Hogan's site, does make you wonder?
Screen Shot 2019-05-30 at 08.35.06 by TDG-77, on Flickr
Either way, mine is sharp as a sharp thing so I'm happy
.
Both bleaching out the background (something I am also starting to do more often now) and the slow shutter speed for the leaves were good decisions. Of course with IBIS, the rest will be sharp.Thanks David. It's a nice wee lens - well, not so wee! It was windy and I'd deliberately chosen a slowish (1/20) shutter speed to allow the leaves to blur. Also it was a very bright day, hence the "white-out" in the background.
I've got copies of my latest plus an older version in my "installers" folder (Mac) so fingers crossed I'll be OK. The original has survived migration from one computer to another.TBH if I didn't already have a copy available I would download it now 'just in case'
Didn't appear to work for me, but I have just managed to acquire an original .dmg file from another member so have the full Nik Collection againLooks like the original downloads are still available ... scroll down to 'Links'...
https://photorumors.com/2016/03/24/nik-collection-now-available-for-free/
Couple from Mondays outing to the Surrey County Show
Both with the 24-70 f4
1
Up and Over.jpg by Trevor, on Flickr
2
Heading your way.jpg by Trevor, on Flickr
As said, things automotive are not usually my subjects for photography --except for the Mercedes museum right across the river from me here in Stuttgart where the car actually originated! You're obviously having some fun with this lens anyhow! What are your impressions on a technical level? Sharpness, performance against the light and all the usual stuff. Although I'm leaning towards keeping a 14/15 prime as a stopgap, in the long term this will certainly come under the radar.Another from the 14-30
Delivered on May 23rd 1945
Note the M1 Carbine mounted to the dashboard
DSC_1945-Edit.jpg by Trevor, on Flickr