Posible solution.
I felt very happy with SD1 Merrill.
But I got trouble image when use M42-SA adapter with Carl Zeiss 50mm lens M42 screw mount.
I know from my friend who use SD1 with latest firmware and got same problem.
any advise?
Advise maybe not , but I can offer you some pointers. We have been selling Mount Replacement kits for SD1 cameras since 2011 and they have worked beautifully .
Recently , hoewever , when some of our customers upgraded to Firmware V1.05 they run into the same problem that you describe
It seems that because Sigma wanted to add the ability to use lens Profiling and Tethered Control to the camera they had to modify the Firmware to enable the camera to read the lens data and when the Firmware tries to read the Converted camera lens data , which is absent in Manual lenses , it malfunctions failing to generate or provide the necessary JPG for the LCD Display . The RAW image however contains all the data captured and can be Post Processed as usual.
Since the SD1 cameras that still had firmware version 1.04 did not had this problem users tried to reinstall the old version with no success . Apparently the system only allows UPGRADES OR REINSTALLATIONS ONLY , but not DOWNGRADES.
We created a Workaround by modifying the Firmware Binary files internal headers , to make them Masquerade as if they where the new SD1V_105. Once this is done the Sigma Uploader will happily upload the old firmware into the camera and EVERYTHING WILL GO BACK TO NORMAL.
This procedure is specific to the SD1 and does not apply to the Merrill or any other model but since both cameras are supposed to be identical it could be conceivable that the same solution will work with the slight modification of inserting the current Merrill Version number and name.
If you bought an SD1 Merrill you are out of luck because it already comes with Firmware version V.1.0 0 that includes all the new functionality( And the problems with the Display JPG when using manual lenses) . Many people say that it is the same V1.05 of the original SD1. Whether this is true or not it is yet to be seen . It is conceivable that the same trick described above for the SD1 could also be used with the SD1 Merrill and proceed to downgrade the V 1.0.4 firmware to trim out the undesirable features and enable he use of manual lenses. If you decide to tinker with the Merrill Firmware , you are on your own and walking in unchartered territory as nobody really know how different the two models are .
You can read about this procedure in
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