Mssimo

Mssimo

Lives in United States Minneapolis, MN, United States
Works as a Software Analyst
Has a website at www.10000photography.com
Joined on Jun 6, 2009

Comments

Total: 766, showing: 41 – 60
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In reply to:

Craig from Nevada: This camera targets a very narrow market segment.

I wonder how deep the market segment is for full-frame astrophotography? How many cameras they need to sell to breakeven and who percentage of the market this represents?

This move makes sense. The DSLR world is changing and this is a niche that might be profitable.

Not sure if any of these are APSc or full frame CCDs.

Direct link | Posted on Feb 10, 2015 at 21:08 UTC
On Sigma dp0 Quattro announced with 14mm F4 lens article (137 comments in total)
In reply to:

Schweikert: I owned a DP1 and greatly enjoyed the image quality, truly awesome for a small camera. The menu was fine as well as the size of the body. But the biggest issue is simply software, Sigma Photo Pro sucks beyond all imagination and no Lightroom support made the pleasure of the camera and the files quickly fade.

Awesome sensor though.

Sigma, you're so close but clueless to the needs of actual users!

I agree. If you shoot jpeg or tiff, you are good to go but as soon as you have to use the sigma software...you will return the camera. Every movement in exposure takes 10-20 secs to refresh photo and that is on a high end computer.

Direct link | Posted on Feb 10, 2015 at 17:47 UTC
In reply to:

Craig from Nevada: This camera targets a very narrow market segment.

I wonder how deep the market segment is for full-frame astrophotography? How many cameras they need to sell to breakeven and who percentage of the market this represents?

This move makes sense. The DSLR world is changing and this is a niche that might be profitable.

The D810a is much more affordable than any cooled CCD cameras.

Direct link | Posted on Feb 10, 2015 at 15:52 UTC
On Sigma goes wide with 24mm F1.4 DG HSM Art lens article (184 comments in total)
In reply to:

Mssimo: Now make us a 85mm f1.4 and a nice macro lens.

I would take a very good f1.4 over a so and so f1.2. Also, if they can keep the $899 price range, that would be amazing.

Direct link | Posted on Feb 10, 2015 at 15:16 UTC
On Sigma goes wide with 24mm F1.4 DG HSM Art lens article (184 comments in total)

Now make us a 85mm f1.4 and a nice macro lens.

Direct link | Posted on Feb 10, 2015 at 13:16 UTC as 38th comment | 9 replies
On Sigma goes wide with 24mm F1.4 DG HSM Art lens article (184 comments in total)
In reply to:

W4YNE 1: I was hoping that maybe Sigma would have produced an 85mm in their flagship model ART lens?

I think they need a untrawide, tele and macro. I never really liked the mid 20's focal length.

Direct link | Posted on Feb 10, 2015 at 13:15 UTC
In reply to:

Craig from Nevada: This camera targets a very narrow market segment.

I wonder how deep the market segment is for full-frame astrophotography? How many cameras they need to sell to breakeven and who percentage of the market this represents?

This move makes sense. The DSLR world is changing and this is a niche that might be profitable.

My guess is that it will be on sale for many years, past the life span of the normal D810 and it will not drop in price by much.

Direct link | Posted on Feb 10, 2015 at 13:09 UTC
In reply to:

Mssimo: In a very successful attempt to match the sensor to the looks of the camera they are now using canons 20MP APSC sensor.

this is more of an attempt of me being funny. Pentax always made great cameras but sometimes they end up very colorful, funny looking and even plain ugly. I guess the sarcasm was too strong for a few of you.

Direct link | Posted on Feb 10, 2015 at 13:03 UTC
On Canon EOS 5DS / SR First Impressions Review preview (2364 comments in total)
In reply to:

Mssimo: 50mp sensor should need an amazing lens (at around f4 due to diffraction at that pixel size). This sensor will redefine what a L lens should be. My guess is that many lens replacements will be coming. Zeiss otus will pull away from sigma 50mm also. Both of them were close at 36mp, but at 50MP, you will see why the Otus is 4 times more money.

I wish sony would make a full frame sensor based on a scaled up version of the 20MP RX100. Can you imagine a 150MP BSI full frame sensor?

I see no attempt in correcting me. I'll blame myself for not being more clear but I might talking over Plasteks head.

If you shoot at a tiny aperture say f32 or f64. You will have a very large airy disk. The size of the disk may cover multiple pixels depending on relative size. My point is that as pixels get smaller (yielding greater potential resolving power) the size of the airy disk (aka diffraction) becomes important. A theoretically perfect lens, when stopped down, resolution will be limited by diffraction. Please feel free to correct me if Im missing something but just saying im clueless and walking away makes it look like this topic is over your head.

Direct link | Posted on Feb 10, 2015 at 13:01 UTC

In a very successful attempt to match the sensor to the looks of the camera they are now using canons 20MP APSC sensor.

Direct link | Posted on Feb 10, 2015 at 03:25 UTC as 48th comment | 10 replies
On Canon EOS 5DS / SR First Impressions Review preview (2364 comments in total)
In reply to:

Mssimo: 50mp sensor should need an amazing lens (at around f4 due to diffraction at that pixel size). This sensor will redefine what a L lens should be. My guess is that many lens replacements will be coming. Zeiss otus will pull away from sigma 50mm also. Both of them were close at 36mp, but at 50MP, you will see why the Otus is 4 times more money.

I wish sony would make a full frame sensor based on a scaled up version of the 20MP RX100. Can you imagine a 150MP BSI full frame sensor?

To me, when the size of the Airy disk becomes larger than 1-2 pixels, diffraction in my definition "kicks in". You can stop down as much as you like but you are only getting a fraction of the sensors resolving power. My ball park guess is that at f11 you will be getting about 12MP worth of resolving power. Im not trying to make you shoot different than you have in the past 15 years. Im sure you will get great results with your current workflow but if extracting every bit of resolving power from a 50MP sensor will require you to use a lens that has peak performance before f5.6. At 75MP to 100MP it will be as low as f2.8. This is the same reason why compact cameras with tiny sensors don't stop down past f8 and also why they still look like crap even having 20+MP on a 1/2.3 inch sensor.

Direct link | Posted on Feb 9, 2015 at 20:14 UTC
On Canon EOS 5DS / SR First Impressions Review preview (2364 comments in total)
In reply to:

Mssimo: 50mp sensor should need an amazing lens (at around f4 due to diffraction at that pixel size). This sensor will redefine what a L lens should be. My guess is that many lens replacements will be coming. Zeiss otus will pull away from sigma 50mm also. Both of them were close at 36mp, but at 50MP, you will see why the Otus is 4 times more money.

I wish sony would make a full frame sensor based on a scaled up version of the 20MP RX100. Can you imagine a 150MP BSI full frame sensor?

Image quality will go up but resolving power will be limited depending on lens and aperture used. For example, if you set a lens to f22 on a 10MP camera and 50MP camera, you might end up with the same resolving power because the weak link becomes diffraction. For 24MP APC or 50MP full frame, diffraction becomes an issue right around f4 and maybe f5.6 if you push it. The lens in use must peak performance before f5.6 to out resolve the sensor. This is the reason Zeiss made the otus line of lenses.

Direct link | Posted on Feb 9, 2015 at 19:21 UTC
On Canon EOS 5DS / SR First Impressions Review preview (2364 comments in total)

I think this will be a very successful camera. Sony/Nikon/Pentax/Fuji/Olympus/Panasonic photographers have been spoiled with crazy dynamic range but canon shooters know how to optimise the exposure to get the best image possible with 6 year old sensor technology. The big issue with this camera is the price in six months. Nikon and Sony will have 50MP+ super sensors out this year. Those cameras will retail for much less than $3700 US. Canon has great lenses and great body (other than sendor) quality but its time they give in and let someone else create the sensors. The best way I can put this is: Canon is a beautiful, long haired, tan, big eyes, long legged, charming girl with brittish austin powers teeth.

Direct link | Posted on Feb 9, 2015 at 13:13 UTC as 164th comment | 5 replies
On Canon EOS 5DS / SR First Impressions Review preview (2364 comments in total)

50mp sensor should need an amazing lens (at around f4 due to diffraction at that pixel size). This sensor will redefine what a L lens should be. My guess is that many lens replacements will be coming. Zeiss otus will pull away from sigma 50mm also. Both of them were close at 36mp, but at 50MP, you will see why the Otus is 4 times more money.

I wish sony would make a full frame sensor based on a scaled up version of the 20MP RX100. Can you imagine a 150MP BSI full frame sensor?

Direct link | Posted on Feb 9, 2015 at 12:58 UTC as 165th comment | 11 replies
On Olympus OM-D E-M5 II First Impressions Review preview (1392 comments in total)
In reply to:

Felice62: This 40mp highres mode is pure crap.

Other crap technologies: Dust Reduction systems, Body and lens based stabilization, liveview, electronic shutters, DSLR/CSC video, WiFi, GPS, Weather Seals, CMOS sensors, autofocus, flash, multi element lenses, multi pixel sensors, and color photography.

Direct link | Posted on Feb 5, 2015 at 21:42 UTC
On Olympus OM-D E-M5 II First Impressions Review preview (1392 comments in total)
In reply to:

brycesteiner: Is there an error with the USB? Only version 2? That cannot be right. It is nice that is has a 64 MP output in RAW.

Im sure everyone is waiting on USB 3.1. The connector is very small and you can reverse the plug like the apple lighting connectors. It can also support huge amounts of power (up to 100w) and speeds up to 10Gbs. lookup USB superspeed+

Direct link | Posted on Feb 5, 2015 at 21:30 UTC
On Olympus OM-D E-M5 II First Impressions Review preview (1392 comments in total)
In reply to:

Jan Chelminski: There appears to be an error in the text:

"However, because there's some overlap between the original set of four pixels and the set of offset pixels, the system doesn't quite yield four times the original resolution (64MP). Instead, the camera compensates for this overlap and outputs a 40MP file. These files are captured both as 40MP JPEGs and as vast, 100MB Raw files."

I believe there is indeed a 64MP output mode, but only with an (PS plug-in unavailable for now) externally processed RAW file.

According to Pekka Potka:
"64 MP is 9216 x 6912 pixels, or 192 MB when opened in Photoshop. The size of .ORF file is roughly 100 MB"

Please see Pekka's, or Imaging Resource's reviews.

Has adobe confirmed support for 64MP raw files?

Direct link | Posted on Feb 5, 2015 at 19:51 UTC
On Olympus OM-D E-M5 II First Impressions Review preview (1392 comments in total)

Very good high res mode comparisons at IR http://www.imaging-resource.com/PRODS/olympus-e-m5-ii/olympus-e-m5-iiA.HTM#HRMODE

This mode is one of the best (best of both worlds) features of the last few years.

They should also have a mode to made the sensor bigger by moving it around the image circle.

Direct link | Posted on Feb 5, 2015 at 18:15 UTC as 230th comment | 3 replies
On Olympus OM-D E-M5 II First Impressions Review preview (1392 comments in total)

Can this camera shoot Raw in high res mode and I would guess a totally new algorithm would be needed. Do we expect adobe to support it?

Direct link | Posted on Feb 5, 2015 at 17:55 UTC as 235th comment | 2 replies

Can this camera shoot Raw in high res mode and I would guess a totally new algorithm would be needed. Do we expect adobe to support it?

Direct link | Posted on Feb 5, 2015 at 17:55 UTC as 17th comment | 1 reply
Total: 766, showing: 41 – 60
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