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Posts for: fetzler
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Jan 12, 2024 21:17:27   #
TheShoe wrote:
Are you sure that the sensor meets the m43 specification? Not every sensor having a 4/3 aspect ratio is a M43 sensor.


You are correct. There is the Aspect Ratio and the digital camera format. Indeed 3 1/4 x 4 1/4 in film would be close to 4:3 aspect ratio.
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Jan 12, 2024 16:15:03   #
BebuLamar wrote:
1" sensor is smaller than 4/3 sensor although 4/3 sensor is less than 1" in diagonal dimension. Go figure.


The 4/3 im micro 4/3 refers to the aspect ratio of the image and sensor.
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Jan 12, 2024 16:13:52   #
MrBob wrote:
"Multiple resources indicate a new generation of Micro-Four-Thirds sensors that is ready to arrive in the market and be implemented on smartphones. The range starts from 44 to 100 megapixels. One of the resources is Weibo which specifies the sensors per smartphone as follows:

4/3-inch 108Mp 1.4μm Nonacell Full-pixel DPAF (new ISOCELL, optimized quantum efficiency)
4/3-inch 80Mp 1.65μm QuadBayer Full-pixel 2×2 OCL AF ( IMX472 changes Mipi interface to reduce digital layer power consumption)
4/3 inch 50Mp 2.1μm 4-Cell Full-pixel 2×2 OCL AF WDR (LOFIC TheiaCel)
4/3-inch 44Mp 2.25μm Mask-PD AF VDGS (Pregius S II)"

Seems like a logical progression... BUT, I am just passing on general news ( valid or not ). Don't kill the messenger.
"Multiple resources indicate a new generation... (show quote)


I am sure these manufacturers are lying. There is a minimum pixel size that is slightly less than 1 micron under ideal conditions. This is physics. Lenses, especially ones stuffed into a pocket make matters worse. It is possible to use software to increase the native number of pixels a larger number but this is not the honest approach and is not the same as using a sensor large enough to accommodate the stated number of pixels. On a micro 4/3 camera that pixel size is on the order of 4 microns.
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Jan 5, 2024 17:55:25   #
KillroyII wrote:
I have a very precise way of knowing when WinDOZE is grinding away at an update… it is ANYTIME I have to quickly do something on the PC!


There are a couple of good rules to schedule updates.

1. Schedule updates for a time and date convenient to you.

2. Delay your updates for a least a week. Let others discover the bugs.
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Jan 2, 2024 12:27:06   #
Architect1776 wrote:
Why not deal with Adorama directly and skip Amazon?


Indeed, why not. There will be no problem with Adorama.
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Dec 13, 2023 14:11:32   #
jerryc41 wrote:
Where better to go for medical advice than a photography forum?

I was talking to a friend yesterday, and he said that he canceled his annual physical because he didn't get the blood test. He didn't want to get a blood test because he said he had been eating a lot of sweets lately, and he didn't want to get a false result.

I didn't think it worked that way. If you ate an entire bag of candy and had the test immediately after, I can imagine that skewing the test results, but I suspect the sugar level evens out over time.

My doctor's office now does blood tests, so it's very convenient.

So, is this guy just afraid of needles, or is there some validity to his fears.
Where better to go for medical advice than a photo... (show quote)


There are two tests for blood sugar.

1. measurement of blood glucose concentration. This is taken after a 12 (or more) hour fast. If you are normal the glucose level will be normal.

2. A1C measurement - this represents about a 3 month average glucose level. This could be a bit high if you are normal and consume a LOT of sweets but if you are normal it will be normal too.

If you are diabetic you won't be able to hide it.
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Dec 7, 2023 14:47:08   #
Orphoto wrote:
Most laptop displays are worse as to color fidelity. Plan on calibration, at minimum, or using an external, desktop monitor.


I don't think that laptops are great but Orphoto's advice is good. You will also want the largest laptop possible although this reduces portability.
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Nov 20, 2023 14:24:59   #
Cтарший брат смотрит и слушает.
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Nov 11, 2023 12:17:25   #
Check out Feelworld field monitors on Amazon. The various models differ a bit in size and brightness. In bright sun brightness can be important. Your camera must have HDMI output.
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Nov 10, 2023 12:19:11   #
yssirk123 wrote:
You can never have too much security - think about using 2 factor authentication, a good antivirus program and a VPN for starters.


I am sure every dictator of the past and present felt the same.
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Nov 8, 2023 08:53:19   #
I don't have prime and most of the time (>95% of the time) there is no shipping charge if the purchase is > $25.
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Nov 8, 2023 08:30:33   #
Stan Fayer wrote:
Shooting with my lumix 4/3 in monochrome is it best , or not , to shoot with a red filter, polorizing filter, to increase contrast or just do it post production


Polarizing filters are very useful in many circumstances. Filters are more flexibly simulated through post processing where anything is possible.

My Oly PEN F is particularly good at this. When shooting jpg +RAW I can have a viewfinder with a BW image and simulate ANY color filter including cyan to simulate orthochromatic film. My EM1 mark III is confined to the usual red, orange, yellow and green filters. In any case post-processing is super easy in most any program. OM workspace is rather good at this task and is free. Investigate the capabilities with your software. The channel mixer is a good option. With post processing you can always change your mind as to which filter is best.
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Nov 7, 2023 13:55:36   #
burkphoto wrote:
Most of us do not need to interface to other equipment with that connection... We just want to use the remote as an electronic "cable release" to avoid camera shake. I have one I don't use. I simply use a two second delay, set from the camera menu.

I have used the WiFi app on my iPhone, but found that process almost silly when doing simple copy work (99% of my macro work is done on a copy stand).


Because you don't use it is why you don't care but those who do will care. The simple shutter release also makes building Arduino or Rasberry PI based remote triggers rather easy as it in only necessary to close a relay.
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Nov 7, 2023 13:47:33   #
burkphoto wrote:
The Lumix G9 II also has a wired connection (2.5mm jack) for a remote, and can be controlled via a smartphone app as well.

Also of interest for macro users is the 100 MP high resolution mode, which can be used on a tripod or copy stand, OR hand-held.

Panasonic's Sean Robinson did a YouTube presentation on features of the new G9 II where he explained automatic focus bracketing, another useful feature for macro fans who like to do stacking. https://www.youtube.com/live/Bhny3ew7Ql8?si=cQcfjj5slGEEbvNL

Lumix users who are unfamiliar with Sean's work should check out Lumix Live. It's a weekly live Q&A chat on Thursdays at 2:00 PM EST. They have 500+ videos posted so far...
The Lumix G9 II also has a wired connection (2.5mm... (show quote)


I posted the following concerning wiring diagrams of various shutter releases. Here it is again https://www.doc-diy.net/photo/remote_pinout/#olympus.

The shutter release on Olympus is a simple switch. My Em1 Mkiii has a Cannon style cable cables are easy to make from junk box parts or audio cables. My Pen F has a mini USB like connector more difficult but adapter cables can be found to use the Cannon style cable. All circuitry is in the camera. This is as it should be. Olympus has an app too but this is rarely useful to me. Olympus has a high res mode too. Even my Pen F has it. I have used it a few times but it makes macros with flash and stacking more difficult. It is useful for art works, however.

Note that I don't say that Olympus or Panasonic cameras are bad but rather choose the camera to fit the job. Any modern camera (and lots of old ones too) will take a fine picture of Aunt Tillie sitting on the porch. There is no best camera.
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Nov 7, 2023 10:02:53   #
gwilliams6 wrote:
PetaPixel's Chris and Jordan:

Panasonic G9 II vs OM System OM-1: Which is the GREATEST Micro 4/3 camera?!

What do micro 4/3 users here in UHH think?


Cheers


There is no greatest camera. The better camera will depend on the features that you find useful or are needed. I do a lot of macro and closeup work. Some of the the features of features that I like about my Olympus system is the simplicity the wired shutter release. I use this frequently. Some of the computational modes on the Olympus are use to me. Video photographers may find Panasonic or another camera more useful. Choose the camera for what you do.
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