Archived posting to the Leica Users Group, 2015/05/11

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Subject: [Leica] [OM] IMGS: Baracoa, + Banding?
From: tmanley at gmail.com (Tina Manley)
Date: Mon, 11 May 2015 17:41:06 -0400
References: <CAMk=+XUrDDXFDgBin=q6z0b-9=Y7LwCygmyD5MYuYzQeGvHqNg@mail.gmail.com> <1A4C395D-7FCD-405C-87D5-FCF55431C339@threeshoes.net> <CAO-EmH1EQ1m==bpAi84z6aHk1nP7UBD3w5=-m8HjuGGDaPhh-w@mail.gmail.com> <CAMk=+XXDr-jBc=GoQ5Ucy+cmghfD8sQCgbdWE86xnJ_hhyt1gQ@mail.gmail.com> <5551169E.5010808@jayburleson.com>

Thanks, Jay.  That's very helpful.  The only one of those it could be is
the newer SD card.  I bought new, fast 32 and 64 GB cards to take to Cuba.
I guess I'll go back to my old, slow ones.

Tina

On Mon, May 11, 2015 at 4:52 PM, Jay Burleson <leica at jayburleson.com> 
wrote:

> Tina, there are various theories / reasons why it can happen.
>
> "Leica noted that a brightened photo at base-ISO can occasionally show
> banding in shadows."
>
> "Shooting in continuous mode, the first image is almost always clean and
> the remaining images are 30% - 90% banded."
>
> "At iso 640 the banding still occurs if not allowing time for the buffer
> to clear."
>
> "Some newer SD cards show more banding than older low capacity slower
> cards"
>
> Lots of bloviating about it here:https://tinyurl.com/ol9gl3g
>
> Jay
>
>
> On 5/11/2015 7:15 AM, Tina Manley wrote:
>
>> Here is a blow-up of the banding in the corner of the photo:
>>
>> http://www.pbase.com/tinamanley/image/160025912
>>
>> This is straight from the original DNG.  When I try to lift the shadows,
>> the banding is very evident to me.
>>
>> Tina
>>
>> On Mon, May 11, 2015 at 2:53 AM, Scott Gomez <sgomez.baja at gmail.com>
>> wrote:
>>
>>  I'm not seeing any banding in any of the shots, Tina.
>>>
>>> On Sun, May 10, 2015 at 10:18 PM, ChrisB <ftog at threeshoes.net> wrote:
>>>
>>>  I can?t see it when viewing ?original?, Tina ? on my little MacBook Air.
>>>> Are you sure it?s not only on your screen?
>>>>
>>>> I like that shot, by the way.
>>>>
>>>> Chris
>>>>
>>>>  On 11 May 15, at 02:26, Tina Manley <tmanley at gmail.com> wrote:
>>>>>
>>>>> I've finished another page from Baracoa, including several from the MM
>>>>> about which I have a question:
>>>>>
>>>>> http://www.pbase.com/tinamanley/cuba&page=32 <
>>>>>
>>>> http://www.pbase.com/tinamanley/cuba&page=32>
>>>>
>>>>>
>>>>> This particular photo was very dark.  The ISO is only 320 but there is
>>>>> severe banding in the shadows.  Why?  It's there in the original dng
>>>>> without any manipulation.  If the ISO is 320, just like most of the
>>>>>
>>>> other
>>>
>>>> B&W's in low light, why is there so much banding in this one?
>>>>>
>>>>> http://www.pbase.com/tinamanley/image/160019998 <
>>>>>
>>>> http://www.pbase.com/tinamanley/image/160019998>
>>>>
>>>>>
>>>>> Does anybody know how to get rid of banding?
>>>>>
>>>>
>>>> --
>>>> _________________________________________________________________
>>>> Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
>>>> Archives: http://lists.thomasclausen.net/mailman/private/olympus/
>>>> Themed Olympus Photo Exhibition: http://www.tope.nl/
>>>>
>>>>
>>>>  --
>>> _________________________________________________________________
>>> Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
>>> Archives: http://lists.thomasclausen.net/mailman/private/olympus/
>>> Themed Olympus Photo Exhibition: http://www.tope.nl/
>>>
>>>
>>>
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>>
>>
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Replies: Reply from ken at iisaka.com (Ken Iisaka) ([Leica] [OM] IMGS: Baracoa, + Banding?)
In reply to: Message from tmanley at gmail.com (Tina Manley) ([Leica] IMGS: Baracoa, + Banding?)
Message from tmanley at gmail.com (Tina Manley) ([Leica] [OM] IMGS: Baracoa, + Banding?)
Message from leica at jayburleson.com (Jay Burleson) ([Leica] [OM] IMGS: Baracoa, + Banding?)