Haleakalā crater on Maui, Hawai'i

[Doug Kerr]

Carla and I just returned from a lovely 15-day cruise to and around Hawai'i.

One of the most stunning sights we saw was the crater of the volcano Haleakalā, which actually (in its entirety) makes up about 75% of the area of the island of Maui. (It is, like all volcanoes in Hawai'i, of the shield volcano form, with a broad sloping cone.) The volcano is active but dormant. That means that there is still hot magma within it but that there have been no eruptions or other external lava flows for a number of years (certainly none during our visit).

From the rim of the crater (about 9750 ft MSL) one sees the most amazing view of the crater's current floor. The terrain is so extra-terrestrial in appearance that we understand it was at one time used to train astronauts in the appearance of the Moon's surface.

The crater is about 2600 ft deep below the rim.

This shot shows the just a small part of the amazing contrast in rock surface and coloration to be seen from just one vantage point, along with the cloud deck, which was in a very nice position during our visit.

Canon EOS 40D, Sigma 18-200 mm f/3.5-6.3 OS at 18 mm, ISO 400, f/16, 1/400 sec. Full frame ex camera except for downsampling and subsequent sharpening.

 

[Asher Kelman]

Hi Doug,

Glad you and you lovely Carla and dear wife had such a great adventure. From your last pictures of the animals near your home, I had hope we'd get nice snaps from Hawaii too. Well, blow me down! This is so beyond a snap. It's spectacular. You are obviously now way beyond engineering into the realm of aesthetics and spiritual experience. The clouds have a dual effect of sky and surf. The rocks in the foreground anchor the scene well.

Congrats and now, out appetite whetted, is the more?

Asher

BTW, before printing do you plan to straighten the "horizon" in the sky?

 

[Doug Kerr]

Hi, Asher,

BTW, before printing do you plan to straighten the "horizon" in the sky?

I will probably apply empirical correction for the lens distortion and see how the "horizon" looks then.

Best regards,

Doug

 

[Doug Kerr]

Hi, Asher,

Here we see the image after empirical correction for lens geometric distortion via PTLens) and a rotation clockwise of 1.6°:

Thanks for the reminder.

Best regards,

Doug

 

[Asher Kelman]

Doug,

Thanks for correcting and reposting that image in one Hollywood moment like magic! I can see from the attached file that you have not inserted you © for the image. That's important. Then you have to pray that IBM™ or Nestlé™ or some other great corp. uses the image in a huge advertising campaign forgetting to buy the image!

Could you explain the EXIF record of your image. It has

Exposure:1/400 sec
F-stop: 16.0
ISO Speed Rating:0
Shutter Speed:1/395 sec
Aperture Value:8.0

Why the mismatch of F-stop and aperture Value? Why the difference between Exposure and and shutter speed?

Asher

 

[Doug Kerr]

Hi, Asher,

Doug,

Thanks for correcting and reposting that image in one Hollywood moment like magic!

I can see from the attached file that you have not inserted you © for the image.

I usually apply full IPTC metadata but was careless today. Thanks for the reminder.

I don't normally use the © notation as I am not so concerned with international copyright issues (but I should be!). I just use the "copyright" notation.

Could you explain the EXIF record of your image. It has

Exposure:1/400 sec
F-stop: 16.0
ISO Speed Rating:0
Shutter Speed:1/395 sec
Aperture Value:8.0

Why the mismatch of F-stop and aperture Value?

No mismatch at all. Aperture Value is the APEX presentation of aperture (logarithmic form) and Av 8.0 corresponds to f/16.0. (Av 6, for example, corresponds to f/8.0.)

There is only a single field for this in the metadata, Aperture Value (in APEX logarithmic form). Your reader gives it directly (as Aperture Value) and also decodes it into f/number form for convenience.

Why the difference between Exposure and and shutter speed?

There are two different fields here in the metadata, Shutter Speed (recorded in APEX logarithmic form - and it should be called Time Value) and Exposure Time (recorded as a fraction). The camera will not necessarily put the equivalent value in both fields. (One may be the nominal shutter speed and the other the actual time of exposure - but the implication of the names of the fields is usually backward!)

But your reader reports both in fractional form. Thus in this file, where Shutter Speed (Time Value) is Tv 8.63, your reader reports that as Shutter Speed: 1/395 sec. Exposure time is 1/400 sec. and your reader reports it as such.

Best regards,

Doug

 

[Kathy Rappaport]

Doug - Nice tosee it in the daylight and without fog. We were there a few years ago for sunrise. I guess It was about 2003 because I was still shooting film and it clouded over at sunrise - we had less than about 5 minutes to see it before it went under the cloud cover. Good job! Thanks for sharing that. I doubt I will get up at 2am to get there again at 4am for nothing. We wore old hotel blankets it was freezing up there too. Hope you had fun. NCL Cruise? Or Hal or Princess?

 

[Doug Kerr]

Hi, Kathy,

Doug - Nice tosee it in the daylight and without fog.

We were very fortunate - a lovely day. (The shot was taken at 11:02 am local time.)

NCL Cruise? Or Hal or Princess?

HAL - ms Zaandam.

Best regards,

Doug

 

[nicolas claris]

Hi Doug
nice trip!

I couldn't resist to work a bit on your image…

Image © Doug Kerr - Edit Nicolas Claris

 

[Andy brown]

Hi Doug
nice trip!

I couldn't resist to work a bit on your image…

Image © Doug Kerr - Edit Nicolas Claris

Ay leetle beet eez too march

 

[nicolas claris]

Ay leetle beet eez too march

Pardon ?

Je ne comprends pas bien…

 

[Doug Kerr]

Hi, Nicolas,

Hi Doug
nice trip!

I couldn't resist to work a bit on your image…

Well, of course it is "prettier" with a lighter tone scale, but in fact the visual impression to me when I saw it live was very dark (even in full sun) and I left the scale in the image rather dark to present that.

Thanks.

Best regards,

Doug

 

[Doug Kerr]

Hi, Nicolas,

Pardon ?

Je ne comprends pas bien…

C'est en la langue de Pepé Le Pew, n'est-ce-pas?

Peut-être actuellement de Pepé Le Pew.

Best regards,

Doug

 

[nicolas claris]

Hi, Nicolas,



Well, of course it is "prettier" with a lighter tone scale, but in fact the visual impression to me when I saw it live was very dark (even in full sun) and I left the scale in the image rather dark to present that.

Thanks.

Best regards,

Doug

I hope I haven't offend you, but I strongly presume that you need much more than that!
I can delete my post if you wish, no prob for me!

 

[Doug Kerr]

I hope I haven't offend you, but I strongly presume that you need much more than that!

If you mean that the image can benefit from more than just an upward shift in the tonal scale, indeed. And thanks for your work in such regards.

I can delete my post if you wish, no prob for me!

No need to do any such thing, my friend.

Best regards,

Doug

 

[nicolas claris]

If you mean that the image can benefit from more than just an upward shift in the tonal scale, indeed. And thanks for your work in such regards.

Hi Doug
I don't mean the version I posted is any better! Just another way to look and comment (visually).
I do respect completely -of course!- the orginal (see my caption under the edit file).
I was just wondering if discovering a bit more could be of any value or not…

As for the comment from Andy, I still don't understand… maybe a coded message… maybe he is talking from another planet (march?) ;-)

 

[Doug Kerr]

Hi, Nicolas,

As for the comment from Andy, I still don't understand… maybe a coded message… maybe he is talking from another planet (march?)

It is in phonetic bogus French accent, as spoken by American cartoon characters. (Pepé Le Pew is a cartoon skunk who speaks zat way.) I think "march" was his "Frenchification" of "much".

Now what the underlying point of it was, I have no idea.

Best regards,

Doug

 

[Ivan Garcia]

Hi Nicolas.
I think what Andy is trying to tell you is that your edit "is a little bit too much".
For what is worth, I like the original better.
Dough.
Very well done indeed. I trust you have had a lovely holiday... keep us posted with more wonderful images of your cruise.

 

[Andy brown]

Hi guys, apologies for the flippant remarks.
I really wasn't meaning to be offensive ( for the record, the good wife did find me a little obnoxious last night and mentioned that I stank of booze and chose to not sleep with my drunken arse).

So, yes, a pattern forming here..long week of work, Friday night, loosening up with a bottle of plonk ( I'm sure the French connection here would at least applaud the method if not the result), poor boundary recognition by yours truly and the predictable hungover, hangdog, humble apology...Sorry!

Also, if it helps put my off hand remarks in perspective, the Australian culture of abusing your mates is very strong and well entrenched within me.
for example a friend might say something like " Jeez Andy, you look a bit rough today did you catch syphilus at Easter again?".. to which I might reply with something like.." No, Gonnorhea actually but at least the ringworm has cleared up!"

Squirming under a verbal barrage ( from one's mates) is seen as utter weakness.
It probably doesn't make much sense from the outside but I can tell you it's very real and very common.

In Australia there are Italian, Greek, English people in large supply but very few French. I suspect you find us all a tad crass, base, boorish and common.

I'll try to behave myself in future, I do tone myself down on this site ( and straighten myself up and try by and large to be polite), my debauched, cynical side does pop its head up occasionally so just keep slapping it down.

Andy

 

[Wendy Thurman]

Beautiful image, Doug. I was up there in the mid-70's for a Haleakela sunrise. There were some, er, mushrooms involved and I am a bit sketchy on the details but it is a beautiful and special place. Thanks for the shot.

Wendy