<< Previous Next >>

Imperator


Imperator
Photo Information
Copyright: Alain Thibodeau (Athila) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 305 W: 232 N: 432] (1564)
Genre: Animals
Medium: Color
Date Taken: 1985
Categories: Fish
Camera: Nikkormat EL & Ikelite housing, Micro-Nikkor 55mm f/3.5
Exposure: 1/60 seconds
Details: (Fill) Flash: Yes
Photo Version: Original Version
Theme(s): Exotic marine life, Fishes from around the world, The Red Sea, Underwater World #2, Underwater Wonder World 2 [view contributor(s)]
Date Submitted: 2005-11-11 20:42
Viewed: 3220
Favorites: 1 [view]
Points: 20
[Note Guidelines] Photographer's Note
Emperor Angelfish

The adult Emperor Angelfish, also known as the Imperator Angel, has a bold, blue body covered with bright yellow horizontal stripes culminating in a bright yellow to orange caudal fin. A striking blue-black mask covers the eyes and a similarly-colored vertical band extends from the pectoral fin two-thirds of the way up the body. This band is highlighted in a sapphire-blue in front, and bright yellow, caudally. The mouth is white. The juvenile is black with circular white and blue stripes starting at the tail. Although sought after for its colors, in an aquarium setting, the adult coloration may not be as striking or brilliant, and the color transition from juvenile to adult, may not be complete. Supplementing the diet with vitamins and color-enhancing foods may help.
The Emperor Anglefish requires a 100 gallon or larger tank with live rock for grazing and hiding. It will nip at stony and soft corals (sessile invertebrates) and clam mantles, but may be kept with small-polyped stony corals and somewhat noxious soft corals.
It should be fed a diet of Spirulina, marine algae, high-quality angelfish preparations, mysid or frozen shrimp, and other meaty items.

Fish fact:

Name: Emperor Angelfish (Pomacanthus imperator)
Family: Pomacanthidae
Range: Central, Western Pacific Oceans; Red Sea
Size: Up to 15 inches
Diet: Omnivore
Tank Set-up: Marine: Coral or rock, plants
Reef Compatible: With caution
Tank Conditions: 72-78°F; sg 1.020-1.025; pH 8.1-8.4
Minimum Tank Capacity: 100 gallon
Light: High
Temperament: Semi-aggressive
Swimming Level: No specific level
Care Level: Moderate
Reproduction: Egg Scatterer


Source: http://animal.discovery.com/guides/fish/marine/emperorangel.html


Technical data:

Camera : Nikkormat EL
Accessory-1 : Ikelite camera housing with flat port
Lens : 55mm f :3.5 Micro-Nikkor
F/stop : Not recorded
Shutter speed : Not recorded
Filter: None
Flash : Vivitar 285
Accessory-2 : Ikelite flash housing
Tripod : None
Film : Ektachrome 64
Flatbed Scanner: Epson 4180
cedryk, ellis49, glazzaro, iglootrek, TAZ, dew77, scottevers7, Luce has marked this note useful
Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 
Only registered TrekNature members may write critiques.
Discussions
None
You must be logged in to start a discussion.

Critiques [Translate]

  • Great 
  • cedryk Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 966 W: 52 N: 1694] (5184)
  • [2005-11-11 21:03]

Diving is something still ahead for me. But one day I will do it. For now I will enjoy your point of view :-) Impressive fish, though I would like this shot to be a bit more contrasted. TFS, Alain!
Greetings from Poland!
Michal

I like this shot of the angel fish plus the live coral background. 7 tails up for this one. Paul :)

Hi Alain,
It's a beautiful shot with lovely colours.
Well composed, good POV and details.
Great work.

Nice work, I do not notice the glass and you have nice detail on the fish, well done.

Greg

Les couleurs sont vives, belle présentation !!!
Tu réussi à obtenir d'excellents résultats avec tes images scannées.
Tu es bien chanceux d'avoir eu la chance de plonger à un si bel endroit tout en étant équipé pour ramener des souvenirs inoubliables.

  • Great 
  • manyee Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3068 W: 231 N: 6169] (21080)
  • [2005-11-12 4:27]

Beautiful fish, Alain. So colorful. Sharp details and great POV. Well done and TFS. : )

  • Great 
  • TAZ Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 2241 W: 47 N: 3167] (10926)
  • [2005-11-12 7:53]

What a wonderful and interesting fish that you have well captured ! I also appreciate the complementary note... Congratulations Alain and thanks for sharing.

  • Great 
  • dew77 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 4774 W: 294 N: 4020] (13209)
  • [2005-11-12 8:39]

Hello Alain!
Very nice capture.Vivid colors,POV,details,framing and composition are wonderful.TFS...:-)

  •      
  • delfi Silver Star Critiquer/Silver Workshop Editor [C: 30 W: 35 N: 7] (90)
  • [2005-11-12 23:46]

Dear Alain,

I would like to react to this picture.

In my opinion you seem to have a tendency (auch!) to digitally boost the brightness too much. Probably in order to remedy cluttering, or lack of defenition in shadows.

First of all let me state that only proper lighting works ; not processing (fixing) afterwards. Improper lighting causes data-loss that can never be recovered afterwards, but can be made to look more acceptible afterwards: if the picture is too dark, we "simply" brighten it.

NOT !

As soon as program-material has been digitized, digitally boosting brightness-levels (too much) instantaniously introduces noise. A digital-grid if present now becoming overly visible, but this could be the result of systematically sharpening your pictures with the same pixel-settings for Unsharp Mask which you shouldn't because this is program-dependant. Meaning: adjust pixel-settings per photo, for best results. Also don't forget proper amount and threshold settings.

When having a choice, allways select the best choice for best results (compare !).

Something about contrast: (digital) Black is Black, and (digital) White is White.

R=0 G=0 B=0 Luminance=0 -> Black !
R=255 G=255 B=255 Lum=240 (max) -> White !

For maximum contrast, brightness should not be boosted (independant of contrast). By boosting brightness too much, a white haze is easily introduced (overall).

And this is what I keep seeing in your pictures ; in general not in anyone elses.

This could be a calibration-error, or simply the fact that you are editing photos in broad daylight which automatically causes you to brighten your photos too much (in this case dim the lights a little).


(part 1)

Hi Alain,
Excellent shot. The colors are very vivid and beautiful. great corals for a backround. Sorry for the short note, on a road trip to Florida and I am working off my laptop somewhere in N. Florida.
Scott

  • Great 
  • zeca Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 373 W: 14 N: 538] (2881)
  • [2006-01-27 16:29]

Nice picture, Alain! For a diver, it's always nice to see beautiful u/s images like this, specially when we live far from the sea and far far from the Red Sea!
Nice colours and sharpness showing this wonderful angelfish! If you like to see, I have my emperor already posted here in TE with some other u/w photos. Regards!
Zeca

  • Great 
  • Luce Gold Star Critiquer/Silver Note Writer [C: 80 W: 0 N: 15] (58)
  • [2006-03-23 20:46]

J'aime bien toutes vos photos sous-marines. La mise au point est bien réussie, les couleurs brillantes et éclatantes. Mille fois bravos.

Calibration Check
















0123456789ABCDEF