Robert Zanatta

Lives in Canada North Vancouver, Canada
Joined on Jan 22, 2015

Comments

Total: 236, showing: 61 – 80
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On article Week in Review: Hungry Birds (6 comments in total)
In reply to:

HSway: more photos from the Sigma 100-400…

I'd say the use of this Sigma for wildlife (a broad term) will be peripheral and occasional. The bird samples show nicely how the lens renders but the segment of wildlife zoom was transformed by the 160-600 lenses. A 100-400 this small is actually a rare travel zoom alternative to 70-200/4 zooms. - The compactness the defining factor of its use (and the speed).

My Tamron 1.4 TC wouldn't work on my Sigma 150-600 after the first lens firmware update.

As for the 100-400, that's a good length for crop sensor bodies. The Canon version is very popular with birders. It also has a minimum focus distance that is small, which allows for pseudo macro shots.

Link | Posted on May 14, 2017 at 03:32 UTC

I have more than three batteries.

Link | Posted on Apr 26, 2017 at 05:51 UTC as 63rd comment | 1 reply
In reply to:

Jim Salvas: One can only imagine what they could accomplish with a current sensor. The CCD sensor on Cassini was designed in the 90s and has a resolution of 1 megapixel. NASA obviously uses a lot of stitching and stacking to do these photos, but still, they wring a lot out of this old sensor.

With 70 pounds of plutonium as your power source, having adequate energy isn't an issue...

Link | Posted on Apr 23, 2017 at 02:41 UTC

The world needs a camera that can capture both the image and the aroma of cherry blossoms.

Link | Posted on Apr 22, 2017 at 08:31 UTC as 29th comment | 2 replies
On article The Sony a9 is a 24MP sports-shooting powerhouse (1828 comments in total)

There's constant reference to a battery that has 2.2 more capacity, but what is the rated number of shots per battery?

Link | Posted on Apr 19, 2017 at 16:30 UTC as 313th comment | 1 reply
On article Fujifilm GFX 50S Review: Modern MF (916 comments in total)
In reply to:

rhlpetrus: Why no cityscape with D810? It is much better than the Canon on the portrait, in all aspects, should do well on the other image as well, despite its lower pixel count. Awesome performance by the dslr.

On the portrait, one issue with the Nikon x Fuji comparison is the DoF, which is much shallower on the Fuji, just check the area around the tie knot, the Fuji is oof there, while the Nikon is still holding it pretty well. I assume both were focused on the left eye, was that so?

It would have been good to see the Sony in the portrait shot. It performed really well in the landscape.

The out of focus tie is quite noticeable, as are the areas of slight folds in the jacket as well as where the meets the shirt. The DOF must really fall off in a very narrow manner.

Link | Posted on Apr 10, 2017 at 05:27 UTC
In reply to:

Peiasdf: I love people with their short memories. Every year Apple came out with something new and everybody wants it but between the announcements, people forgot what Apple just did and start talking about no innovation, falling behind Google, etc.

iTune pay-per-track
iTune backup
Touch UI / swipe / pinch to zoom / Multi-Touch
Sealed in lithium polymer battery
Apps
Retina display
60fps UI
Metal frame / glass back
FaceTime
Aluminum unibody
Micro & Nano SIM card
Unidirectional plug
Siri
Touch ID
64-bit SoC
True-tone flash
Low motion video
3D Touch
NVMe storage
Apple Pay
Stereo speakers in waterproof body
2x optical zoom

And of course iPhone and iPad, products that started entire markets.

Name one other company that introduced an iPhone or iPad like revolution or a list half as long as Apple's.

No, Xerox just made a really good copy.

Link | Posted on Apr 7, 2017 at 12:17 UTC
On article Western Digital launches its first portable SSD (143 comments in total)
In reply to:

(unknown member): IMHO the specs scream be careful!! WD themselves rate it only for a drop from 2 metres, and onto what? a feather pillow or concrete? Not said, but the idea that a force of 1500G is bearable needs investigation, since it must mean grammes, like being knocked by a bag of potatoes! It cannot mean G as in 1500x the force applied by our gravity here on Earth, as there is nobody around capable of applying that much. I could be wrong, but one and a half thousand times the force of our gravity- or G, Wow! or should one say G?

I have here a MacBook Pro from mid 2015, the 11.5 with the 1Tb hard drive I got before I knew they could have such problems. It loses stuff: Finder windows, whole folders, and then it sticks on a webpage, everything stops responding, no cursor, buttons zero. Or it Jams in Optics Pro. The screen vanishes, and it shutdown, wont reboot 3 online reformats later and only 50 battery recharges, and in perfect condition, 2 years old, trying again, fingers crossed, not good...

The g force is due to acceleration of a mass. So how do you get 7500g force?

First, you recognize that acceleration is a change in velocity (a vector), which means a change in speed and/or direction. Acceleration is measured in distance over time (squared).

Second, the g force is acceleration related to the gravitational constant for a body; it is acceleration divided by the gravitational constant.

So let's say you have a moving object whose speed is reduced to zero in 1 second. You then have the same moving object's speed reduced to zero in 1/10 of a second. In the second case, the acceleration is much greater as the object's changed in velocity occurred much faster.

To get the huge g force you want, either increase the object's speed or decrease the time it takes to stop.

Want to make your external drive more shock resistant? Then put it in a case that will more easily deform on impact.

Link | Posted on Apr 7, 2017 at 12:05 UTC
On article Western Digital launches its first portable SSD (143 comments in total)
In reply to:

Steve in GA: Solid-state drives seem like they should be 100% reliable, since they have no moving parts. However, when I have shopped for internal computer solid-state drives, I have found that there are many reviews from buyers who have had LOTS of reliability problems.

Anyone here have personal experience with SSD's?

There's no difference in the storage medium when data corruption occurs on that medium. Whether a cell in NAND loses integrity, or part of a platter's magnetic medium loses integrity, data can be lost.

Also, the file system format has nothing to do with when data is physically written to the storage medium. The operating system can house a cache, both read and write, on a device that is using the FAT16 filesystem, or any other filesystem For example, this was done almost 25 to 30 years ago on operating systems such as MS-DOS and OS/2 that were using FAT16 as their file system format. The caches often have a feature to enable or disable lazy writes, and the operating system typically provides the ability to specify whether writes cannot be cashed or delayed.

Link | Posted on Apr 7, 2017 at 11:32 UTC
In reply to:

cosinaphile: if it has a micro sd card slot and a way to use headphones that does not include a dongle , than its a phone i can at least respect

And a battery that's a lot bigger.

Link | Posted on Apr 5, 2017 at 20:59 UTC

I hope the provide MFA so I can get the most out of the sensors.

Link | Posted on Apr 1, 2017 at 03:38 UTC as 12th comment
On article DPReview on TWiT: the Fujifilm GFX 50S (11 comments in total)

"It even make YOU look good."

Link | Posted on Mar 28, 2017 at 16:18 UTC as 9th comment
In reply to:

Robert Zanatta: I wish they'd bring back their plasma televisions...

I have the VT25. Colours appear like real life, and skin tones are accurate. Details in blocks is excellent. Watching movies taken from film is a pleasure. With other technologies (haven't looked at the latest OLED), the picture usually looks somewhat "animated".

Only downside is brightness and power usage. Best viewed in a dark room.

Link | Posted on Mar 28, 2017 at 09:26 UTC

I wish they'd bring back their plasma televisions...

Link | Posted on Mar 27, 2017 at 19:16 UTC as 124th comment | 3 replies
In reply to:

Peiasdf: I love people with their short memories. Every year Apple came out with something new and everybody wants it but between the announcements, people forgot what Apple just did and start talking about no innovation, falling behind Google, etc.

iTune pay-per-track
iTune backup
Touch UI / swipe / pinch to zoom / Multi-Touch
Sealed in lithium polymer battery
Apps
Retina display
60fps UI
Metal frame / glass back
FaceTime
Aluminum unibody
Micro & Nano SIM card
Unidirectional plug
Siri
Touch ID
64-bit SoC
True-tone flash
Low motion video
3D Touch
NVMe storage
Apple Pay
Stereo speakers in waterproof body
2x optical zoom

And of course iPhone and iPad, products that started entire markets.

Name one other company that introduced an iPhone or iPad like revolution or a list half as long as Apple's.

Those are innovations?

I was doing video calls, even over a cellular network, before the first iPhone was available. FaceTime is just like 95% of Apple's innovations - copy and hype.

Link | Posted on Mar 23, 2017 at 00:47 UTC
In reply to:

steelhead3: I feel sorry for them in that last picture...why overburden yourself with those old time cameras?

Some people do more than just lift their fingertips when they work.

Link | Posted on Mar 6, 2017 at 21:20 UTC
On article PDN announces its 30 emerging photographers of 2017 (27 comments in total)

My thumb hurts.

Link | Posted on Mar 6, 2017 at 21:10 UTC as 6th comment
In reply to:

TheDarmok74: The obvious question being if they Put it in the S8.

The S8 will not be announced until March 29, and release is expected by the end of April. It will use both the Snapdragon 835 and the Exynos 8895.

Sony uses the Snapdragon 835 in their newest smartphone.

The S7 uses the Snapdragon for the US market, and the Exynos for the rest of the world.

Link | Posted on Mar 2, 2017 at 17:27 UTC

Any pricing?

Link | Posted on Feb 27, 2017 at 02:21 UTC as 28th comment
In reply to:

khurtwilliams: Interesting that cameras keep getting better but the quality of photographers gets worse.

Ignore the hate - it's not worth it.

Link | Posted on Feb 25, 2017 at 00:11 UTC
Total: 236, showing: 61 – 80
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