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a6300 NOISE test

ph_LDA

By ph_LDA,
in Sony Alpha APS-C and NEX Cameras

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ph_LDA Contributor

ph_LDA

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Hallo everybody

 

I joined this forum coz I'm having issues with my new camera, a6300, and I wanted your help to figure out if my camera is working fine and properly or if it is somehow bugged.

 

 

 

My issue is about noise. I'm experiencing a LOT of it. At any ISO value and at - apparently - any light condition. Talking about still images in both RAW and jpeg format. 

 

 

Can you help me understand what kind of test I can do to discover if the problem is the camera or the photographer? I come from a 6Mp Nikon D40 and expected a great improvement in image quality, which I'm not experiencing. Maybe it's my fault, maybe it's the camera's ^^'.

 

 

 

here you have an eg, iso 100 f22 1/160

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photo taken in plain daylight.

 

 

 

Thanks for your help and please excuse my poor English

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Guest Jaf-Photo

Guest Jaf-Photo

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It's not really possible to tell without looking at the raw file.

 

Your D40 has a lowres CCD sensor vs. the highres CMOS in your A6300.

 

Therefore you can expect to see more noise from your A6300, at least at lower ISO.

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ph_LDA Contributor

ph_LDA

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Ok about the low ISO, I didn't expect it but I can understand it. But here we're talking of a pic shot at 100 iso in plain daylight : )

 

 

What you see here is the same as what you would see on the raw file. I wouldn't have posted this if it wasn't a valid exemple. It is a crop of the original raw file with 100% file size and exported via photoshop at max resolution.

And I testify that it looks exactly the same as the original raw file.

 

 

So what about your experience? I really need the opinion of others possessing SONY and maybe Alpha cameras!

 

 

Thanks a lot for your answers.

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Guest Jaf-Photo

Guest Jaf-Photo

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Please listen. Nobody can tell you if you have excessive noise without looking at your raw file. A6000, A6300 and A6500 does show some noise even at low ISO. It will show extra in pictures of cloud or haze. If the noise is intrusive, you use noise reduction features.

 

You're noticing noise because you're used to a sensor type that does not show noise at low ISO. CCD sensors are better but CMOS sensors are cheaper. That's why we get them in our cameras.

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ph_LDA Contributor

ph_LDA

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Of course I'm listening, I'm here to get help ^^

 

please tell me what steps should I take to deliver you a solid test image to discuss on!

 

 

but I'm not "noticing" noice. I'm litterally drawning in noise! I must understand if this is the standard or if there is a problem in the camera or in the photographer b4 I spend my few coins buyng sony lenses and stuff!

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ChristosSerrano Newbie

ChristosSerrano

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Of course I'm listening, I'm here to get help ^^

 

please tell me what steps should I take to deliver you a solid test image to discuss on!

 

 

but I'm not "noticing" noice. I'm litterally drawning in noise! I must understand if this is the standard or if there is a problem in the camera or in the photographer b4 I spend my few coins buyng sony lenses and stuff!

What lens are you using? Also f22 is too high! Better shoot f8 or ever f16. F22 you will get a lot of refraction.

 

Sent from my SM-G935F using Tapatalk

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Guest Jaf-Photo

Guest Jaf-Photo

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The best thing would be to take a controlled test shot and upload the raw file to dropbox, posting the link here.

 

Like previous poster said, use a reasonable aperture like f8, by shooting in A mode. iSO 100, e-curtain off, daylight WB and all "improvement" settings off.

 

You can take a picture wirh cloudy or hazy skies, as that tends to show noise.

 

Your first picture has luma noise but no chroma noise. This is normal at ISO 100 but the luma noise shows stronger than normal (this could be s result of sub-optimal settings or background processing in your software) Doing a controlled shot and checking the raw file should limit the possible causes.

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ph_LDA Contributor

ph_LDA

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I will take the shot you are asking me as soon as a cloudy day appears here!

 

As for the previous image, it is straight as it came from the camera, only converted from raw to max quality jpeg, with no resizeing, only crop, via photoshop

 

 

thanks for the help!

 

ps lens is sony SELP18105G

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Guest Jaf-Photo

Guest Jaf-Photo

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That's a good picture to use. I compared it to similar pictures from my A6000. Your noise is blotchier, which makes it more visible.

 

Blotchy noise is more typical of high ISO settings. At low ISO, I would primarily guess at some processing flaw.

 

Have you tried updating the firmware? Camera should be v2 and lens v04.

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  • 2 weeks later...
ph_LDA Contributor

ph_LDA

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so? I see I'm not the only one here concerned about it. Sony makes great cameras and expensive lenses, I need to trust my camera body if I have to invest in more lenses! yet, for my job I need to do it, on Sony, on back on nikon if I have to : (

 

Also the Sony Assistance stopped answering me after saing something unclear but bad sounding!

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Guest Jaf-Photo

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By processing flaw, I meant that the internal processing in the camera does not produce an optimal file from the sensor. This would generally be related to firmware.

 

Sony files are often a bit noisier than, for instance, Canon files. This may seem bad but it is actually good. It comes from the gact that Sony applies less noise refuction to the raw file. Therefore you have the ability to apply your own blend of noise reduction and sharpening.

 

In your case, the noise is blotchy, which makes it harder to correct. I don't know why it's blotchy. You should reach out to other A6300 users to see if you can get comparison shots. If yours are worse you should press the seller or Sony to fix it.

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