[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 678: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 678: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 678: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 678: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 678: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 678: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 678: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 678: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 678: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_content.php on line 678: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4784: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3884)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4786: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3884)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4787: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3884)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4788: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3884)
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_reimg.php on line 136: preg_match_all(): The /e modifier is no longer supported, use preg_replace_callback instead
illuminazione subacquea : GoPro Subacquea - Pagina 13

illuminazione subacquea

Discussioni e usi creativi di GoPro nel mondo sommerso

Re: illuminazione subacquea

Messaggioda prolonga » 20/12/2014, 19:16

Inoltre, i dati in lumen che trovi pubblicati (ovunque) sono riferiti all'emissione frontale.
Immagina il cono di luce: nel punto centrale in asse con la sorgente viene presa la misura, ma mano a mano che ci si allontana questo valore diminuisce. Fra il punto centrale e l'estremo laterale puoi avere una caduta nell'ordine del 10-15% o più ( dipende dall'angolo del cono).
  • 0

prolonga
 
Messaggi: 74
Iscritto il: 11/02/2014, 0:02
Feedback: 6
User Newbie
Città di residenza:

Re: illuminazione subacquea

Messaggioda angeloludovico » 20/12/2014, 23:11

: Chessygrin : scusate tutte queste domande
  • 0

Ultima modifica di angeloludovico il 20/12/2014, 23:21, modificato 1 volta in totale.
angeloludovico
 
Messaggi: 276
Iscritto il: 24/11/2014, 17:39
Feedback: 10
New HERO
Città di residenza:

Re: illuminazione subacquea

Messaggioda angeloludovico » 20/12/2014, 23:18

Qui puoi leggere i dati di targa (non di lavoro del led inserito in un corpo nel quale produce calore) di quel led che citi:
http://www.led-tech.de/en/High-Power-LE ... 0_170.html

Bel sito, non ce in italiano? É da un po che mi voglio farmi un po di cultura su questo argomento.
Per esmpio, leggendo a sinistra i vari tipi di led presenti, quale è il migliore per riprese video sub?
Oppure è meglio una torcia a luce calda?
  • 0

angeloludovico
 
Messaggi: 276
Iscritto il: 24/11/2014, 17:39
Feedback: 10
New HERO
Città di residenza:

Re: illuminazione subacquea

Messaggioda prolonga » 20/12/2014, 23:55

Il miglior led è quello più efficiente (rapporto lumen/watt), con angolo di almeno 100°, con temperatura colore attorno ai 3.000 K, con CRI di almeno 90 (100 l'indice cromatico che identifica la luce del sole).
Ma un array di questi led che totalizzi almeno 5000 lumen effettivi non basta: occorre una buona batteria che li alimenti con tanti ampere i quali a loro volta non vanno d'accordo con dimensioni e peso tascabili. L'ideale sarebbero le batterie LIPO ma hanno margini di insicurezza (=deflagrazione) che, per quanto contenuti, esistono.
Infine tutto questo ancora non basta se non inserito in un progetto di circuito elettronico adeguato e in un corpo che dissipa adeguatamente il calore che sarebbe generato.
Come vedi non basta il led fine a sé stesso.
Comunque CREE e Bridgelux hanno anche ottimi led.
  • 0

prolonga
 
Messaggi: 74
Iscritto il: 11/02/2014, 0:02
Feedback: 6
User Newbie
Città di residenza:

Re: illuminazione subacquea

Messaggioda angeloludovico » 21/12/2014, 3:41

E per la luce calda che mi dici?
  • 0

angeloludovico
 
Messaggi: 276
Iscritto il: 24/11/2014, 17:39
Feedback: 10
New HERO
Città di residenza:

Re: illuminazione subacquea

Messaggioda prolonga » 21/12/2014, 7:03

In che senso?
  • 0

prolonga
 
Messaggi: 74
Iscritto il: 11/02/2014, 0:02
Feedback: 6
User Newbie
Città di residenza:

Re: illuminazione subacquea

Messaggioda angeloludovico » 21/12/2014, 14:23

Intendo meglio luce fredda o luce calda?
  • 0

angeloludovico
 
Messaggi: 276
Iscritto il: 24/11/2014, 17:39
Feedback: 10
New HERO
Città di residenza:

Re: illuminazione subacquea

Messaggioda prolonga » 22/12/2014, 0:09

  • 0

prolonga
 
Messaggi: 74
Iscritto il: 11/02/2014, 0:02
Feedback: 6
User Newbie
Città di residenza:

Re: illuminazione subacquea

Messaggioda angeloludovico » 22/12/2014, 0:25

  • 0

angeloludovico
 
Messaggi: 276
Iscritto il: 24/11/2014, 17:39
Feedback: 10
New HERO
Città di residenza:

Re: illuminazione subacquea

Messaggioda dinomartini » 08/01/2015, 10:16

Ciao Pucciosan,
volevo farti una domanda, prolonga mi ha risposto ma la risposta non mi convince...

...vedo che utilizzi un filtro macro (se non sbaglio nel tuo caso è un backscatter macromate mini), quando fai le riprese "non macro" togli il filtro o lo lasci sulla GoPro?

...altra domanda, nell'ultima foto vedo che hai un braccio tipo locline ed un altro rigido, è dovuto a fattori di testing oppure c'è un motivo particolare?

Scusa la mia curiosità.

Grazie
  • 0

dinomartini
 
Messaggi: 14
Iscritto il: 08/10/2014, 22:16
Feedback: 1
User Newbie
Città di residenza:

PrecedenteProssimo

Torna a GoPro Subacquea

Chi c’è in linea

Visitano il forum: Nessuno e 2 ospiti

cron
Reputation System ©'