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Posts for: Desert Gecko
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Nov 22, 2023 12:20:56   #
I saw this on X this morning.

https://twitter.com/i/status/1727175117333995785
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Nov 22, 2023 12:20:32   #
As many of us know (and for those who don't), rolling shutter is caused by sensor readout, which is done row (or groups of rows) by row from one edge of the sensor to the other, at a pace that doesn't keep up with fast action.

Put another way, when the subject is moving faster than the camera can read the sensor from one edge to the other, the subject will appear distorted. That's when we see curved swinging golf clubs, or curved airplane propellers.

A few years ago I mused that one day rolling shutters would be a thing of the past, and that we'd see phone apps that recreate a rolling shutter for comedic effect. The second part of my amusement has arrived, arrived early. I'll post the link in a reply.
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Nov 12, 2023 11:18:41   #
btbg wrote:
At least with the Nikon Z9 129 frames per second actually makes less culling. It has a feature that alkows you to take shots up to a second before you push the shutter. So, if you out it in a tripod prefocused on home plate at a baseball game and then only push the shutter when someone gets a hit you save culling through every single pitch.

Many ither applications for that kind of frame rate including super slo motion video. Nothing says you have to use the frame rate but its really nice when you need it.
At least with the Nikon Z9 129 frames per second a... (show quote)


The a9iii also offers up to a second of pre-shot recording. And it does 120fps with full AE and AF, unlike the Z9.

But how does this make for easier culling? Oh that's right, it doesn't. What makes culling easier is the a9iii's ability to show those high-speed frames as a mini video that you can pause to easily zero in on the desired frame or frames.
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Nov 8, 2023 23:24:06   #
jerryc41 wrote:
I have a leaf vac that I pull around my yard, and I had to order a new hose for it. I've had it for fifteen years, so I guess I can't complain. I ordered the hose on 11/2. I received an invoice yesterday - five days after I ordered it. There's still no information about shipping it.

I keep telling the leaves that I'm waiting for a part, and it should be here - eventually. They don't care about "eventually." They want to get off the lawn and be piled up with their friends and relatives. Amazon sells similar hoses for less money, but there's no guarantee they would fit. I'll have to wait.
I have a leaf vac that I pull around my yard, and ... (show quote)


Fascinating, Jerry. Thanks so much for sharing that.
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Nov 2, 2023 11:25:57   #
Architect1776 wrote:
Three new lenses have been introduced today.
1. RF-S 10-18mm f4.5-6.3 STM
2. RF 24-105mm f2.8 L IS USM
3. RF 200-800mm f6..3-9 IS USM

The 24-105mm looks like a good replacement for the short range 24-70mm lenses with the longer 105 mm and still f2.8.
It also has a fully manual aperture ring.

The 200-800mm should be great for those needing reach but can't afford the 5 figure 600mm or 800mm lenses and you get full compatibility with the TCs. At $1,900 a great deal.
PS it, like several other Canon lenses uses diffractive lens to help with size and weight. They just don't put it all over the lens.
Three new lenses have been introduced today. br 1.... (show quote)

Bold choices for Canon. I'm intrigued by the 24-105mm f/2.8 -- a lens that combines my Sony 24-70mm f/2.8GM and 24-105mm f/4G -- but I wonder how much the thing will weigh. Probably too heavy to be practical as a walk-around lens, but I like the range and the faster max aperture. I much prefer my 24-105mm except for dim indoor scenes, and in those I don't need 105mm anyway, so although this sounds cool I don't know if it's really worth it.

And $1900 for a 200-800mm zoom? Bet it has questionable IQ for such a relatively low price. Still, 800mm is something.

As for the 10-18mm, meh.
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Oct 30, 2023 23:23:15   #
JustJill wrote:
I have also been going back and forth between those two cameras. I have printed all the information on those two. But I really like that link. Than you for posting it.


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Oct 30, 2023 20:45:52   #
flycaster wrote:
Desert Gecko- it worked! Thanks SO much!

Chuck

Glad it worked for you.
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Oct 29, 2023 15:53:57   #
flycaster wrote:
Hi. The Pictures folder on my PC changed radically after a Windows update. My thumbnails have all changed to the same blue and white image, so I have to labor through the unlabeled ones to see what's there. Any suggestions about how to get my thumbnails back?

Chuck


As with most Windows tasks, there's more than one way to do this. Here's one.
1. Open File Explorer and go to any pictures folder (you might want to use the folder that gremlins got into). See the first screenshot below. Click Home then Properties then Properties again then Customize, and finally, from the drop-down menu, Pictures if it isn't already selected. Click Apply then OK (second screenshot).

I'm guessing Pictures isn't selected, and that's why Windows changed your previews to icons. But maybe not, so here's more:

2. Again in the Windows Explorer menu up top, click on View. At the far right, click on Options then Change folder and search options. That'll bring up a popup (third screenshot). Click on View.
3. Uncheck the box that says Always show icons, never thumbnails (last screenshot). Click Apply to folders (to make this apply to all pictures folders), then click Apply at the bottom, then OK to close out the windows, and voila!








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Oct 28, 2023 22:14:16   #
usnret wrote:
And your point is?

Rather than search for and download various PDFs, we can see all pertinent info for a comparison by making just a few clicks on dpreview.com. One stop shopping. I'm not sure how you didn't understand my point.

Here's a link to the site and comparison tool: https://www.dpreview.com/products/compare/cameras

And here's an example, a comparison of the Sony RX10-iv with the Nikon Coolpix P1000:
https://www.dpreview.com/products/compare/side-by-side?products=sony_dscrx10iv&products=nikon_cpp1000
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Oct 28, 2023 21:06:40   #
usnret wrote:
One thing worth considering doing is to download the PDF info for all of the aforementioned cameras and decide from there which brand and model will work best for you based on what you intend to use it for. Minimum and maximum shutter speeds, aperature values, ISO range, flash range, low light performance etc, are all part the info included in PDF files.

Or we can look at camera side-by-side comparison on dpreview.com.
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Oct 28, 2023 20:29:35   #
a6k wrote:
1. Choose a candidate and rent one for a week. When I did that for the Sony RX10 III it pleased me so much I bought one before the rental period was up.

2. The Nikon Coolpix 900 or 950 has a sensor that is 1/4 the area of the Sony RX10 but the apparent or equivalent zoom is much longer. We have the 900 and the 1000. The 1000 is much heavier than the 9xx because the actual focal length of the lens is about 540 mm and the equivalent is 3000mm!! For birding it's spectacular. Although it has the same small sensor it takes somewhat better pictures than the 9xx. I can shoot with the 1000 free hand at full length and often can get a sharp (enough) picture but it's not easy. My wife get it right about 10% of the time but would do better if she would rest the lens against something. That said, her good shots, because of the equivalent length, are simply great. A good shot at full extension with the Coolpix 1000 is almost always better than my shots at the same distance with my RX10. The 540 mm lens (actual) beats the 220 mm sense (actual) well enough that the bigger sensor can't compete. Keep in mind that the Nikon crams 16 mb into an image and the Sony only has 20 mb in 4x the area. Sony's image quality is better but not when you have to enlarge 5x to get the same size subject.

3. The Sony RX10 IV
https://www.sony.ca/en/electronics/cyber-shot-compact-cameras/dsc-rx10m4
is close in size and weight to the Nikon 9xx series but is much nicer ergonomically. If you rent one you will see what I mean. The image quality and the eye-focus are great, even for pets or birds. But an equivalent 600 mm is not anywhere near either of the Coolpix's 2000 mm.
https://en.nikon.ca/nikon-products/product-archive/compact-digital-cameras/coolpix-p900.html
But if you intend to enlarge and print then, if 600 mm is enough then the Sony, at a higher price, is the best choice. I have printed some pics from the Coolpix 1000 up to 11 x 14 with acceptable results but IMO, the Sony's image quality is clearly better.

4. Be aware that if the same size sensor as the RX10 IV but with only 200 mm equivalent would suffice, then the RX100 m7 might be a good choice because it's very small and light and has comparable image quality.

I'm a confessed Sony fan-boy so others will say that their favorite brand is best. YMMV.

I have deliberately avoided discussing digital zoom in this. Some people disagree with me about this.
1. Choose a candidate and rent one for a week. Whe... (show quote)

All valid points. I too like the Nikon P1000, and I too am a Sony fanboi. But the RX10-iv is liked by many who own other brands of DSLR/mirrorless. I have a die-hard Canon-shooting friend who owns an RX10-iv, and I've a friend who owns only a P1000. She gets some images from her Nikon bridge that rival my and my friend's images from our top of the line Sony and Canon gear -- but she also gets images that cannot match those from ours.

Since you avoided it, I'll mention digital zoom and Sony's Clear Image Zoom (CIZ). It's jpeg only, but oh, what jpegs! CIZ is not simply a digital crop, or magnification. And Sony's not the only company working wonders with jpegs.

Cellphones use computational photography to render jpegs that are better than expected. And, as a former Olympus shooter (from film days through point & shoot, before purchasing a Sony DSLR-type ILC), I can say that Olympus P&S cameras also rendered better-than-expected jpegs. My first decent P&S was an Olympus with a 3.2MP sensor that produced countless great images. Today I still own and occasionally shoot with a 16MP Olympus SZ-31MR, and I still own an Olympus bridge, a 12MP Olympus XZ-2 that I rarely use. Of course, the XZ-2 shoots RAW too, but its jpegs are outstanding. I've always thought that Olympus produced the best jpegs.
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Oct 28, 2023 17:16:42   #
Canisdirus wrote:
Depends on what you are looking to gain by switching.
Is it weight? If so...forget the Sony RX10 IV. Look elsewhere.
Is it best performance bridge camera? Now you get the Sony.

I don't own a bridge camera, but the attractiveness for me would be the simplicity...one body...all the lenses in one hand. Not so much about size or weight...just simplifying it all.

If that is the case...get the Sony.

Have you ever held an RX10-iv? It weighs about half of a typical DSLR mounted with an all-around lens, such as a 24-105mm or 28-200mm, and much lighter than any camera and the two or three lenses that would be needed to cover the range of the RX10-iv. Indeed, the first time I used an RX10-iv, I thought it felt cheap because it was so lightweight. But cheap it ain't.

The weight (just more than two pounds) comes mostly from the optically excellent Zeiss lens. It's mostly the lens and the large (for a bridge camera) 1" sensor that give the camera its reputation for excellence.

I saw a couple of Nikons mentioned. I rather like the P1000 and its little brothers, but the 1/2" sensor is a weak spot. Even the 1" sensor in the RX10-iv gives me pause, but either is fine for social media and smaller prints. Of course, now with Topaz GigPixel and even Adobe's similar upscaling (although feeble by comparison), sensor size matters a bit less -- especially with the right kind of shot.

Some consumers notice this sort of thing, which is why cellphone makers are starting to include larger sensors and better (longer and wider) camera optics, conceding that computational photography isn't always the answer.
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Oct 28, 2023 12:33:29   #
Jeannie88 wrote:
Yesterday, saw someone with a Nikon Bridge camera. As I am getting older, that seems like a good way to go, especially if I travel. Any one using a Nikon Bridge camera, or an olympus(if there is one)? I have used DSLRS for years and wonder if I would really like a one does it all camera?Right Now I am an Olympus User, although I was a nikon User for many years. What about Sony? Many years ago , I did have a Sony 828, I think it was called, and the color , and macros were wonderful

I'm pretty sure you can use any camera to shoot a bridge. Oh, wait--

My vote is for Sony's RX10-iv. Even though it's getting long in tooth, it's still the best bridge out there. I keep thinking there'll be an update soon but no word yet.

And aren't we all grateful that the former darling of this blog, the Canon SX50 bridge camera, is no longer mentioned in every other post? I never understood the fascination with that mediocre thing.
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Oct 23, 2023 11:49:37   #
Daryls wrote:
Actually, the 107 mm mortar round uses the OFZ-2M Fuze. It requires removal of the safety and arming device, and then setback forces (from firing out of the tube) to arm it. The fuze is armed about 5 to 20 meters outside the mortar tube muzzle. Once armed, the fuze can detonate the round on solid ground, mud, and even snow. The fuze can be set for immediate detonation or with a 0.006 to 0.015 second delayed action.

Daryl
Retired US Army EOD Officer

Sure, on paper. And it's true that munitions generally won't easily detonate unless they're prepared to do so. But ol' Murphy has a say every now and again, as we saw in a tragic mortar incident at a Nevada army base ten years ago.
https://www.rgj.com/story/news/2014/01/22/investigation-shows-hawthorne-blast-that-killed-7-marines-was-caused-by-loading-two-mortar-rounds-into-mortar-tube/4777115/
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Oct 17, 2023 11:42:25   #
abc1234 wrote:
I need a new video card for my computer. The current one is a nVidia GeForce GTX 1050 Ti and the fan is getting noisy. I presume this means it will fail shortly. The problem is that I cannot find a replacement fan and nVidia does not have any. The current card is a gaming one with 4 Gb.

Since I cannot find a fan, I presume I have to replace the entire card before it dies altogether. The most intensive programs are Photoshop and Premiere Pro. No games. Adobe recommends just 4 Gb with DirectX 12 support for PS.
What do you recommend?

Thanks for your help.
I need a new video card for my computer. The curr... (show quote)


It's best-guess without knowing what kind of system a replacement GPU is going into. Sure, we could recommend an RTX 4090 or an RX 7900-XTX, but your CPU will bottleneck them and your PSU won't support them. The trick here is to finesse in the best GPU that your PC will happily support, so that begs the questions: Which CPU are you running, and how many watts is your power supply?

Aside from this, my generic recommendation is for AMD if cost is a consideration. AMD cards are generally much cheaper for equivalent processing power. Nvidia cards, on the other hand, perform better overall and generally better with Adobe apps, according to Puget Systems benchmarks. Still, you might consider something from the AMD 6000 series (any but the awful RX 6500 XT), which retail in the $200-$300+ range. I'm guessing that a system that supported the 1050 will support such a card, but your PSU must have an 8-pin connector available, and a newer card will demand at least 100W more than the 1050 Ti. You can try a site such as pcpartpicker and input your computer's hardware to check for compatibility.

I'm currently happy with an RX 6650 XT in one machine and an RX 6750 XT in the other, but I'll be upgrading before the end of the year. I'll probably stay with AMD GPU because of a significant cost advantage. Black Friday deals are just around the corner, but you might also keep an eye on Newegg's daily "Shell Shocker" deals. That's where I found bargains on my GPUs more than a year ago and paid about what they retail for today.
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