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big_is custom exif
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PostPosted: Thu Sep 04, 2008 5:23 pm    Post subject: big_is custom exif Reply with quote
big_is wrote:
EXIF CUSTOM: Now we offer a service of editing focal length. Please email us your lens focal length after sending us extra USD4 / GBP2. Then we will edit EXIF on chip for you.

Click here to see on Ebay


PostPosted: Thu Sep 04, 2008 5:58 pm    Post subject: Reply with quote
Focal length only
They can not do Aperture yet
I think that aperture coded at f2.8 makes less trouble than f2
I would like all my adapters to tell the camera F2.8 max
There is less need for exp. comp this way
At least with the adapter that I have that is coded f2.8 (From happypagehk)

BTW
HPHK has the C/Y to eos adapter back in stock
They pulled it for a while do to QC probrems
I received a message from them that it is back and improved Smile


PostPosted: Thu Sep 04, 2008 6:08 pm    Post subject: Reply with quote
sunshine wrote:
At least with the adapter that I have that is coded f2.8 (From happypagehk)

I confirm, perfect exposure with my happypagehk custom f3.5
At least coded focal can help sorting pics
for exposure, we have to wait some reports


PostPosted: Thu Sep 04, 2008 6:36 pm    Post subject: Reply with quote
F16SUNSHINE wrote:
Focal length only
They can not do Aperture yet
I think that aperture coded at f2.8 makes less trouble than f2
I would like all my adapters to tell the camera F2.8 max
There is less need for exp. comp this way
At least with the adapter that I have that is coded f2.8 (From happypagehk)

Andy, does the aperture info in the chip affects the camera's exposure calculation? Even in M mode? I didn't know this before, I thought it was just info for the EXIF data and the exposure is calculated on the amount of light.


PostPosted: Thu Sep 04, 2008 6:45 pm    Post subject: Reply with quote
Quote:
Andy, does the aperture info in the chip affects the camera's exposure calculation? Even in M mode? I didn't know this before, I thought it was just info for the EXIF data and the exposure is calculated on the amount of light.


It sure seems to
With the f2.8 chip I don't often dial in an exp. comp for normal front light situations (center weighted)
With the f2 or in my OM adapter it's f1.8 I typically dial in 2/3's or get blown highlights (or close to blown)
I've read others say the same and it sound like Poilu also gets these types of results
In the next couple weeks I will review the latest adapters from both of these suppliers here on the forum
It will be interesting to see the differences if any
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