rhlpetrus

Lives in Brazil Campinas, Brazil
Works as a math professor
Joined on May 4, 2007

Comments

Total: 991, showing: 1 – 20
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In reply to:

Mr Bolton: The looks remind me of my old Pentax Takumar lenses. Maybe they'll release this in K mount. Would be very appropriate for those cameras.

My screw Takumar SMC 50 f/1.4 is a gem of a lens.

Link | Posted on Apr 20, 2022 at 15:42 UTC
In reply to:

BobT3218: I like that manual lenses have greater travel on the focus ring giving a legible DOF scale. The Oly 17/1.8 has a DOF scale that is so small it's almost useless. This lens seems to have a colour coded DOF scale. How does that work?

Correct, if you know what it actually means, but I doubt most people know that, since most will never actually print anything. And most scales are so limited they are not very useful. The most interesting application is for landscape photography, to establish hyperfocal distance and use it appropriately (usually not focusing exactly there, but a bit beyond). And everything still depends on final output size.

Link | Posted on Feb 19, 2022 at 19:05 UTC
In reply to:

MichailK: Put out a few similar primes and they make a very nice combo with the Zfc body
BUT
no stabilization
AND
high price
kill the nostalgic idea from the start

Nostalgic ideas: check the updated price of a Nikon SP. Then check if it had stabilization. And the prices of the S lenses.

Link | Posted on Feb 19, 2022 at 12:08 UTC
In reply to:

BobT3218: I like that manual lenses have greater travel on the focus ring giving a legible DOF scale. The Oly 17/1.8 has a DOF scale that is so small it's almost useless. This lens seems to have a colour coded DOF scale. How does that work?

DoF scale on lenses is a totally useless feature now that one looks at images using screens and monitors of various resolutions and sizes. DoF perception depends essentially on final size of output as it basically depends on circle of confusion seen as a dot. It also depends on viewing distance. Of course, on size of sensor, FL and aperture, but increase output size and something that looked in focus may start to look oof. It may look nice and vintage, but is meaningless (unless you print your image at 10” wide and look at it from 1-2 ft away, the original standard for DoF).

Link | Posted on Feb 19, 2022 at 11:57 UTC
In reply to:

The Fat Fish: Hardly surprising. The once leader Canon makes incredible cameras but they spent too long giving up market share with releases like the 6DII and EOS M series. Sony were also very tactical in embracing video features whilst Canon did the complete opposite and actively crippled theirs.

Don't get me wrong, I would buy an R5 and maybe an R6 (if it was 26+ mp) but for the longest time Canon were no longer appealing. It's only now the R5 is out that there is a genuine feeling of need to upgrade my original 6D.

Canon’s share of world camera market is about 50% in units is close to it in revenues. That’s not changed much in recent years. Main story is Sony is second, not Nikon, but things may change again as many current dslr users update their systems to ml. Not big news actually, Sony has neen the ml leader for some time, but that will likely decline in coming years.

Link | Posted on Feb 18, 2022 at 03:22 UTC

Good video, thanks. But the comments are much more fun, second bowl of popcorn already. Cheers!

Link | Posted on Feb 5, 2022 at 18:29 UTC as 117th comment
In reply to:

gipper51: So bottom line: if you don't get the shot with any of these cameras it's because YOU messed up, not the camera.

Party spoiler 🙃

Link | Posted on Feb 5, 2022 at 18:20 UTC
In reply to:

Mortal Lion: Who cares about led banding. It's about the subject in sports not the nice bokeh :p. Let adobe take care of it with a software fix in lightroom.

"The Z6 would run circles around the Z9 in pro sports, why not just use that?" Really?

Link | Posted on Jan 31, 2022 at 15:04 UTC
In reply to:

mga010: I don't understand the remark about the file size. According to what I read, HE* is about 22MB, which does not sound too bad.

Yes, DPR should clarify that comment, it doesn't seem right. On the subject of RAW compression on the Z9, Jim Kasson has tested EDR for the three compression modes and there seems to be no difference. The posts are in the Z forum.

Link | Posted on Jan 31, 2022 at 15:01 UTC
In reply to:

MyReality: Now can everyone stop arguing about market share in Japan. A graph is worth more than a thousand words.
I am betting the global market will be the same for the top three.

0 for Nikon in 2021?

Link | Posted on Jan 27, 2022 at 16:17 UTC
In reply to:

Debankur Mukherjee: Nikon ??

Zfc was launched in 2021 and according to various reports, was among the top sellers in Japan, so the blank in 2021 is just poor data collection.

Link | Posted on Jan 27, 2022 at 16:16 UTC

I didn’t know Nikon had closed in 2021, as implied by first graph.

Link | Posted on Jan 27, 2022 at 11:22 UTC as 4th comment | 3 replies

Maybe my good 50 yo Spotmatic F will increase in value ...

Link | Posted on Jan 22, 2022 at 03:20 UTC as 82nd comment
In reply to:

(unknown member): A small list of DX(or affordable FX) lenses for Z mount:
(all lenses under $1000, with many under $500)
28mm f2.8
40mm f2
50mm f2.8 macro
12-28 (expected)
24mm (expected)
26mm pancake (expected)
16-50 kit
50-250 kit
18-140 kit
Viltrox 23/33/56/13(maybe)
Viltrox(24/35/50/85)
TTArtisan 32mm f2.8
Nikon Z 35/50
That's 20 lenses.
Technically, most primes in Z mount lie under $1000 in US, but they look ridiculous on Z bodies. Similarly, FTZ adapted lenses look ridiculous, except for long primes.

Z fc is a unique body. Most Z DX bodies will look like Z 50. So ergonomics with larger lenses is fine. In fact, some equivalent lenses are cheaper than Fuji equivalents, with better optics and no focus breathing.

For Z fc, 28mm f2.8, 50mm f2.8 macro and 12-28mm wide, looks like a very good combo when outdoors. Hopefully, Nikon will launch more DX primes by year end.

That’s why I’m waiting for a FF Zf. C’mon Nikon! No more aps-c for me.

Link | Posted on Jan 9, 2022 at 22:35 UTC
In reply to:

jnd: I would rather award product that offers good set of features for great price, thefore becoming best seller. Tamron can fall into that category, the other two are top of the line cameras. They pack a lot of innovative tech but less than 1% of buyers can afford them and end up purchasing them.

The pros will buy them of course, because those tools will pay for themselves back. But for average consumer they will benefit from such tech only when it will trickle down to low-mid range couple generations later.

"But for average consumer they will benefit from such tech only when it will trickle down to low-mid range couple generations later."

That's exactly why the Z9 had so many votes, mostly from people who'll never buy such a camera.

Link | Posted on Jan 5, 2022 at 18:28 UTC

Good to see Nikon, a true photography company, doing well. Bodes well for photography in general.

Link | Posted on Jan 5, 2022 at 18:26 UTC as 39th comment
In reply to:

W5JCK: These polls are just stupid. Two of the items are either not released at all or have just been released. How can people accurately rate an item they have never used? IMO, this is just another popularity type of poll with absolutely no meaning or value.

This is about announcement impact, not about real user experience, otherwise one would only vote for their own gear, not very interesting. Most people vote on the perception that that camera or lens is something really interesting. And the Z9 rally caught a lot of attention, from all types of photographers. My case, I'll likely never buy such a camera, but it interested me to learn about it and its new technologies.

Link | Posted on Jan 5, 2022 at 18:25 UTC
In reply to:

KoolKool: so many big and boring FF, we really need something new!

It's a smartphone world already!

Link | Posted on Jan 4, 2022 at 14:43 UTC
On article Gear of the Year 2021: Barney's choice - Nikon Z9 (513 comments in total)

Nice stuff, thanks and congrats on new camera. Z 9 looks like the real thing, bravo Nikon.

Link | Posted on Dec 26, 2021 at 22:43 UTC as 54th comment
On article Gear of the Year 2021: Barney's choice - Nikon Z9 (513 comments in total)
In reply to:

mick232: A wise man once told me: the best camera is the one you have with you.

Given the Z9's (un-)availability, it can't be the best camera for many.

@dmanthree, check the Z forum, many Z9 owners already happily using theirs.

Link | Posted on Dec 26, 2021 at 22:39 UTC
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