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If (in a quiet setting) you put your ear against the camera while adjusting the manual focus, you can hear the focus motor. A quick press doesn't always activate it. On the other hand, if you hold it for more than an instant, it will "take off". I could not easily get it to do just "one click". The values listed below were obtained by going up and down the scale several times, then importing the exif data into a spreadsheet to sort by distance and eliminate duplicates.Hi. Has anyone done any experiment on the manual focus to
compliment the (almost) useless focus distance indicator on the G1?
I know the manual has a rough guide on how to read the focus
distance indicator, but I'd like to know the focus distance in more
detail. For example...how many down clicks from the top of the
indicator graph = how many Meters away is focused?
Thanks a lot.
If (in a quiet setting) you put your ear against the camera whileHi. Has anyone done any experiment on the manual focus to
compliment the (almost) useless focus distance indicator on the G1?
I know the manual has a rough guide on how to read the focus
distance indicator, but I'd like to know the focus distance in more
detail. For example...how many down clicks from the top of the
indicator graph = how many Meters away is focused?
Thanks a lot.
adjusting the manual focus, you can hear the focus motor. A quick
press doesn't always activate it. On the other hand, if you hold
it for more than an instant, it will "take off". I could not
easily get it to do just "one click". The values listed below were
obtained by going up and down the scale several times, then
importing the exif data into a spreadsheet to sort by distance and
eliminate duplicates.
CONCLUSION: The focus bar is only intended to be the crudest
measure of where the focus mechanism is. The focus motor cannot be
reliably advanced one increment at a time. Subject distance
reported in exif may not be completely accurate, as incremental
changes are not always logical/consistent.
SOLUTION: Firmware update to give digital readout of actual, exact
focus "step" and corresponding "subject distance" while focusing.
Also, using the left/right part of the rocker button for a fine
focus adjustment would be nice, but probably not possibly via
firmware update.
At 1X Zoom (7mm), I was able to get the following 60 "subject
distance" field readouts:
65.535
32.630
3.483
1.832
1.241
1.126
0.952
0.883
0.823
0.773
0.728
0.620
0.566
0.542
0.500
0.482
0.465
0.449
0.422
0.397
0.386
0.366
0.357
0.340
0.332
0.324
0.317
0.310
0.298
0.286
0.276
0.271
0.258
0.254
0.250
0.239
0.235
0.229
0.226
0.217
0.211
0.204
0.197
0.191
0.185
0.178
0.173
0.169
0.164
0.157
0.153
0.147
0.140
0.138
0.137
0.135
0.133
0.131
0.126
0.125
At 3X Zoom (21mm), I was able to get the following "subject
distance" field readouts (I quit at 0.511 Meters):
65.535
23.723
12.188
9.221
5.733
4.979
3.943
3.748
3.264
2.890
2.685
2.507
2.204
2.139
2.078
1.819
1.775
1.732
1.548
1.485
1.299
1.138
1.025
0.921
0.783
0.728
0.721
0.633
0.597
0.536
0.511
If (in a quiet setting) you put your ear against the camera whileHi. Has anyone done any experiment on the manual focus to
compliment the (almost) useless focus distance indicator on the G1?
I know the manual has a rough guide on how to read the focus
distance indicator, but I'd like to know the focus distance in more
detail. For example...how many down clicks from the top of the
indicator graph = how many Meters away is focused?
Thanks a lot.
adjusting the manual focus, you can hear the focus motor. A quick
press doesn't always activate it. On the other hand, if you hold
it for more than an instant, it will "take off". I could not
easily get it to do just "one click". The values listed below were
obtained by going up and down the scale several times, then
importing the exif data into a spreadsheet to sort by distance and
eliminate duplicates.
CONCLUSION: The focus bar is only intended to be the crudest
measure of where the focus mechanism is. The focus motor cannot be
reliably advanced one increment at a time. Subject distance
reported in exif may not be completely accurate, as incremental
changes are not always logical/consistent.
SOLUTION: Firmware update to give digital readout of actual, exact
focus "step" and corresponding "subject distance" while focusing.
Also, using the left/right part of the rocker button for a fine
focus adjustment would be nice, but probably not possibly via
firmware update.
At 1X Zoom (7mm), I was able to get the following 60 "subject
distance" field readouts:
65.535
32.630
3.483
1.832
1.241
1.126
0.952
0.883
0.823
0.773
0.728
0.620
0.566
0.542
0.500
0.482
0.465
0.449
0.422
0.397
0.386
0.366
0.357
0.340
0.332
0.324
0.317
0.310
0.298
0.286
0.276
0.271
0.258
0.254
0.250
0.239
0.235
0.229
0.226
0.217
0.211
0.204
0.197
0.191
0.185
0.178
0.173
0.169
0.164
0.157
0.153
0.147
0.140
0.138
0.137
0.135
0.133
0.131
0.126
0.125
At 3X Zoom (21mm), I was able to get the following "subject
distance" field readouts (I quit at 0.511 Meters):
65.535
23.723
12.188
9.221
5.733
4.979
3.943
3.748
3.264
2.890
2.685
2.507
2.204
2.139
2.078
1.819
1.775
1.732
1.548
1.485
1.299
1.138
1.025
0.921
0.783
0.728
0.721
0.633
0.597
0.536
0.511
If (in a quiet setting) you put your ear against the camera whileHi. Has anyone done any experiment on the manual focus to
compliment the (almost) useless focus distance indicator on the G1?
I know the manual has a rough guide on how to read the focus
distance indicator, but I'd like to know the focus distance in more
detail. For example...how many down clicks from the top of the
indicator graph = how many Meters away is focused?
Thanks a lot.
adjusting the manual focus, you can hear the focus motor. A quick
press doesn't always activate it. On the other hand, if you hold
it for more than an instant, it will "take off". I could not
easily get it to do just "one click". The values listed below were
obtained by going up and down the scale several times, then
importing the exif data into a spreadsheet to sort by distance and
eliminate duplicates.
CONCLUSION: The focus bar is only intended to be the crudest
measure of where the focus mechanism is. The focus motor cannot be
reliably advanced one increment at a time. Subject distance
reported in exif may not be completely accurate, as incremental
changes are not always logical/consistent.
SOLUTION: Firmware update to give digital readout of actual, exact
focus "step" and corresponding "subject distance" while focusing.
Also, using the left/right part of the rocker button for a fine
focus adjustment would be nice, but probably not possibly via
firmware update.
At 1X Zoom (7mm), I was able to get the following 60 "subject
distance" field readouts:
65.535
32.630
3.483
1.832
1.241
1.126
0.952
0.883
0.823
0.773
0.728
0.620
0.566
0.542
0.500
0.482
0.465
0.449
0.422
0.397
0.386
0.366
0.357
0.340
0.332
0.324
0.317
0.310
0.298
0.286
0.276
0.271
0.258
0.254
0.250
0.239
0.235
0.229
0.226
0.217
0.211
0.204
0.197
0.191
0.185
0.178
0.173
0.169
0.164
0.157
0.153
0.147
0.140
0.138
0.137
0.135
0.133
0.131
0.126
0.125
At 3X Zoom (21mm), I was able to get the following "subject
distance" field readouts (I quit at 0.511 Meters):
65.535
23.723
12.188
9.221
5.733
4.979
3.943
3.748
3.264
2.890
2.685
2.507
2.204
2.139
2.078
1.819
1.775
1.732
1.548
1.485
1.299
1.138
1.025
0.921
0.783
0.728
0.721
0.633
0.597
0.536
0.511
