I give 100 $
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July 23, 2009 at 9:00 am #7516bailunParticipant
Ladies and gentlemen!
I shall give 100 $ to the first who will make
good Bdag Gerard Meegan 3 yellow cycle the exposition is less than 8 seconds f2.8 EV 14.
7 seconds and are lower.
Good luck
July 25, 2009 at 8:26 am #9154bailunParticipantLadies and gentlemen!
It is offered to your attention
4×5 Bdag Gerard Meegan 3 yellow cycle the exposition 7seconds f2.7 EV 14.3
Development lamp EV 12 = 10000 lux 16 hours
lens tessar 165 f2.7
Falling light EV 14.3
EV 14.3 = 50000 lux
EV 14 = 40000 lux
EV 14.3 it on 10000 lux is more EV 14!
The diagnosis:
Insufficient exposition.
Lethal outcome. The patient is dead!
The increase or reduction of time of development are not compensated with an insufficient exposition.
Conclusion:
Gerard Meegan has joked!!!
Then:
1. Why all about it are silent already more than 20 years?
2. Why we pay money for such books?
3. Why we pay money for such workshops GEH?
Can be GEH not take money for such workshops, and itself to spend money for the present scientific researches BECQUEREL DAGUERREOTYPE?
THANK Gerard Meegan!
HE HAS LEARNED ME AS IT IS NOT NECESSARY TO MAKE BECQUEREL DAGUERREOTYPE.
Excuse, I did not begin to gild it.
BAILUN
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You must be logged in to view attached files.July 25, 2009 at 8:31 am #9156July 25, 2009 at 8:57 am #9158July 29, 2009 at 12:57 am #9172Jon LewisMemberLieutenant Columbo, I’ve been thinking about your predicament and the only thing I have come up with is a problem with the plate. Are you using plated, clad, or pure silver? Are you galvanizing? How are you polishing?
The best time I have gotten is 30 seconds with a second cycle yellow at f/4.7. This would be about 11 seconds at f/2.8. That’s only 0.65 stops away from the goal of 7 seconds. My polish was okay but not amazing and I’m guessing that with a really great polish the plate would become a stop or two faster. But all that is with a second cycle yellow and not a third.
July 29, 2009 at 2:31 am #9174corey rParticipanti’m getting far slower results with a 3 minute exposure.
fumed to 3rd yellow, ev 15, uv index of 10 (as per local weather info), f4.5 with an extra half stop on top of that for bellows extension compensation. I guess that would bring my f2.8 exposure to about 45 seconds?
July 29, 2009 at 2:48 am #9176Jon LewisMemberThat’s interesting, when I was using pure silver plates my f/2.8, EV 15 exposure was about 65 seconds.
This is a rather elementary question: how do you determine the exposure compensation for bellows extension? I’ve never really confronted the problem and instead hoped it wouldn’t be TOO much of a problem… 😕 I know with enlargers, the higher you go the more the exposure you need, the contrast goes down as well.
July 29, 2009 at 3:07 am #9178bailunParticipantTo inspector Jon Lewis!
I touch your care of mine predicament.
But in predicament there are Gerard Meegan 3 yellow cycle the exposition 7 seconds and even 11 seconds!
Specially for you I raise prize-winning fund up to 101 $!
Please 3 yellow cycle. not second cycle yellow.
good luck.
July 29, 2009 at 3:26 am #9180corey rParticipantJon-
I’m not really good at it yet either but until you’re making a 1:1 or larger image on your plate its not much to worry about. There’s too many formulas that I keep finding out there. By my understanding if your bellows extension is greater than the focal length of your lens (focusing on anything closer than infinity) then you need to compensate by lengthening your exposure. The difference is minimal until your bellows extension starts to get really long. At roughly double the focal length of your lens you need to compensate by two stops, one and a half times your lens’ focal length is close to one stop. Again I’m not really good at this but its a starting point.
-Corey
July 29, 2009 at 10:04 am #9182drdagParticipantJuly 29, 2009 at 12:38 pm #9184PobboravskyParticipantHow to calculate bellows exposure factor:
1. Divide the bellows extension by the focal length of the lens.
2. multiply the above result by itself.
This gives the bellows factor. Multiply this bellows factor by the exposure time given by your light meter to get the corrected exposure time.
An example.
bellows extension = 14
Focal length = 7
(1) 14 / 7 = 2
(2) 2 x 2 = 4
July 29, 2009 at 6:44 pm #9186bailunParticipantLadies and gentlemen!
Counterrevolution proceeds!
We have a little digressed.
Let’s return to our rams.
Here are submitted to your attention:
Earlier made and published above / it is corrected on balance white /
1. 4×5 Bdag Gerard Meegan 3 yellow cycle the exposition 7seconds f2.7 EV 14.3 sun
Development lamp EV 12 = 10000 lux 16 hours
Earlier ???????? and published above / it is corrected on balance white/
2. 4×5 Bdag Gerard Meegan 3 yellow cycle the exposition 10 seconds f2.7 EV 14 lamp 6400 K
Development lamp EV 12 = 10000 lux 31 hours
3. 4×5 Bdag Gerard Meegan 3 yellow cycle the exposition 10 seconds f2.7 EV 14 sun
Development lamp EV 12 = 10000 lux 8 hours
/special to inspector Lewis, please add 1 more second, till 11 seconds expo and at you all will turn out! But do not speak about it, make it!/
Beautifully!?
To tell the truth, jokes Gerard Meegan of me interest a little.
Result I knew many years back.
For me it not a subject of discussions.
Question to all. Why earlier nobody has made these nonsenses?
Time of revolutions is finished!
bailun / the counter-revolutionary
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You must be logged in to view attached files.July 29, 2009 at 8:00 pm #9188drdagParticipantFrom my limited knowlege I would say that the third cycle Iodine is way too much, I would go for the first cycle I am doing F4.5 EV 15 about 40-70 seconds with great results. I ghet images like the above if i over iodine
July 29, 2009 at 8:28 pm #9190bailunParticipantBravo!
It already the third renunciation from GURU Meegan!
Truly I speak, before the cock three times will cry out…
Who the following?
July 29, 2009 at 8:55 pm #9192bailunParticipantFor the information.
Who does not know.
EV 14 = 40000 lux
EV 15 = 80000 lux
EV 14 twice there is less than light!!!
July 29, 2009 at 9:24 pm #9194Jon LewisMemberIrv, thank you for the explanation! It seems obvious now that it has been pointed out to me, it’s nothing but the plain old inverse square law. 🙂
Lieutenant Bailun, I will take on your challenge and act as a defender of the establishment (Meegan)! It will take me a little while to have new plates made so be patient but I will prove to you that Meegan’s methods are indeed valid.
July 29, 2009 at 11:09 pm #9196bailunParticipantAgain lyrics. Again infantile cowboy’s pathos. Again country music. again America rescues the world.
Again cock-a-doodle-doo.
Do not make laugh, the inspector!
July 30, 2009 at 12:07 am #9198Jon LewisMemberBig talk coming from a lieutenant with slow bdags. What I don’t understand is what good does it do you if I get fast bdags?
July 30, 2009 at 8:06 am #9200bailunParticipantLearn to understand!
Then shout cock-a-doodle-doo.
July 30, 2009 at 9:38 am #9202bailunParticipantComplexes of the SAVIOR of the WORLD are good for treating money.
You are ready to pay to me 10000 $ if you will not make
good Bdag Gerard Meegan 3 yellow cycle the exposition is less than 8 seconds f2.8 EV 14?
Thus. I take off the special prize for you 101 $.
For all others competition proceeds.
July 30, 2009 at 2:29 pm #9204Jon LewisMemberThe competition proceeds but only for those who appear uninterested in competing. Lieutenant, your money is safe.
July 30, 2009 at 5:30 pm #9207bailunParticipantAll. Duel is finished. Inspector Lewis not beautifully has run away.
Money – the best means against talkers inspectors.
July 30, 2009 at 5:42 pm #9208Jon LewisMemberI haven’t run away yet. I just ordered an f2.8 lens specifically for the task at hand even though you’ve removed me from the official competition.
July 31, 2009 at 3:05 am #9227corey rParticipantGentlemen,
I have a theory to present you with. Looking again at Meegan’s description of the process in “coming into focus” he describes using a 7.5 watt, white lightbulb reflected off a piece of mat board to look at his plates to determine sensitization levels. I don’t know about you guys, but I have always been a follower of the school of less light is better when working with photo sensitive materials. Meegan describes checking the plate extremely frequently while sensitizing as well. It didn’t hit me until I looked at this article again the other day:
http://www.cdags.org/wp-content/uploads/unlocking-the-secret.pdf
Could it be possible that Meegan was unintentionally hyper-sensitizing his plates by essentially pre-flashing?
Other questions that come to mind include where Meegan was getting these results. The UV index is not mentioned anywhere only the lens aperture and his meter’s ev reading. What were the humidity and heat conditions? Where was he sourcing his iodine from? Is it possible that the iodine he was using was in some way fresher/ more pure than what I could get my hands on? (I for one have had to fume for much closer to 15-20 minutes with very fresh iodine after letting fumes build up in my fuming box for several hours)
Just some thing to think about.
-Corey
July 31, 2009 at 6:59 am #9229bailunParticipantI can add still weight of factors theoretically influencing on/Meegan hyper-sensitizing/
For example it haemorrhoids or the quantity(amount) to drink some beer and whisky by manufacture/Meegan hyper-sensitizing/. Look here a photo as the hippie with beer do(make) dag! I any more do not speak about LSD.
I shall repeat.
We discuss a subject which SAW NOBODY!!! WHICH is NOT PRESENT FOR TODAY.
Bdag Meegan 7 seconds.
ALSO WE TRY TO JUSTIFY IT(HIM) AS EXISTING!
Thus it is a priori confirmed that it is the TRUTH!
Also we search for own fleas.
Together with the aristocratical professor.
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