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Rain Forest/Wilderness Beaches Thread - Mostly Flektogon 20
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PostPosted: Thu Jul 10, 2008 9:22 pm    Post subject: Rain Forest/Wilderness Beaches Thread - Mostly Flektogon 20 Reply with quote
I took a lot of images at the wilderness beaches and the rain forest valleys in Olympic National Park, almost exclusively with the Flek 20/4.

The lens is extremely versatile, and can go to almost macro levels as well as beautiful infinity levels. I am becoming very fond of the lens. This lens is mounted almost permanently on the K110D now... Confused

I am in full agreement with Orio, that this lens handles high contrast situations with ease. A VERY good tool!


Queets Valley Alders
Flek 20/4
f:8, 1/20th
Tripod



Vine Maple Lace Against Western Red Cedar
Tamron SP 70-210
f:8, 1/15th +1.5 compensation
Tripod




Spruce and Rain Forest Light (In the rain)
Flek 20/4
f:8, 1/3 second +1 compensation
Tripod
Image posted previously, this one at higher pixel count




Trail Copse (In the rain)
Flek 20/4
f:8, 7/10 second +1 compensation
Tripod
Image posted previously, this one at higher pixel count




Red White and Blue (subalpine meadow)
Flek 20/4
f:8, 1/350th @ ISO800 (windy)
Hand-held


PostPosted: Thu Jul 10, 2008 9:37 pm    Post subject: Reply with quote
All are great, but this one "Vine Maple Lace Against Western Red Cedar" is fantastic!!


PostPosted: Thu Jul 10, 2008 9:47 pm    Post subject: Reply with quote
Beautiful captures as always! Now I like the best last one.


PostPosted: Thu Jul 10, 2008 10:23 pm    Post subject: Reply with quote
What kind of lenshood do you use?

I have one for the pentax 20/4,5, and can work.


PostPosted: Fri Jul 11, 2008 3:11 am    Post subject: Reply with quote
Beautiful shots. Very enjoyable to look at.


PostPosted: Fri Jul 11, 2008 5:55 am    Post subject: Reply with quote
I love your photos !

A little question : what do you mean with +1 compensation ? Overexposed your pic with +1 ?


PostPosted: Fri Jul 11, 2008 6:53 am    Post subject: Reply with quote
Beautiful woodland shots, Larry. The red flower seems to verge on the garish - was the sun hitting it?


PostPosted: Fri Jul 11, 2008 7:25 am    Post subject: Reply with quote
All fantastic pictures, and #1 wins the prize for me.


PostPosted: Fri Jul 11, 2008 7:51 am    Post subject: Reply with quote
congrats! all photos are exceptional


PostPosted: Fri Jul 11, 2008 8:06 am    Post subject: Reply with quote
These photos are amazing!

PS. Is it risky to use such great lens in rainforest ? I mean whether it is easy to get fungus there?


PostPosted: Fri Jul 11, 2008 9:12 am    Post subject: Reply with quote
Sandie wrote:
These photos are amazing!

PS. Is it risky to use such great lens in rainforest ? I mean whether it is easy to get fungus there?


You surely can get more spores there, but fungus needs time to develop on a lens. So a proper lens cleaning (barrel and glasses) after each forest session should keep the risk away.


PostPosted: Fri Jul 11, 2008 9:20 am    Post subject: Reply with quote
Orio wrote:
fungus needs time to develop on a lens


+ moisture (not just humidity)
+ darkness
+ no ventilation

There's no risk, even when there is high humidity, if you keep your lenses at an even temperature, in the light and well ventilated. Come back from a rainforest and leave your damp lenses in your damp, dark camera bag and you're asking for trouble.


PostPosted: Fri Jul 11, 2008 9:28 am    Post subject: Reply with quote
Anyway lens hygiene remains the first step in my opinion.
All the others (controlled humidity, light, air) are also needed, but to you keep your lenses clean is important.


PostPosted: Fri Jul 11, 2008 9:37 am    Post subject: Reply with quote
Glorious shots again Laurence. I like the Western Red Cedar one. You keep giving me challenges to try, I can't keep up with you, and you have such fantastic subjects to choose from too! Smile

Eric999 wrote:
I love your photos !

A little question : what do you mean with +1 compensation ? Overexposed your pic with +1 ?

Eric - yes, +1 means that the exposure is one stop more than the camera's auto exposure setting. It's only really needed on a camera in auto-exposure mode to override the settings. You could do just the same in manual mode by setting the shutter speed one stop slower than the meter is suggesting.


PostPosted: Fri Jul 11, 2008 10:42 am    Post subject: Reply with quote
Orio wrote:
Anyway lens hygiene remains the first step in my opinion.
All the others (controlled humidity, light, air) are also needed, but to you keep your lenses clean is important.


Oh, yes, that's quite correct. But in fact fungus needs all three factors together (darkness, moisture and still air) as well as organic matter to feed on, in order to germinate and grow. If you only avoid just one of them you will probably be OK, but avoid all three and you can be confident. (Orio, treating and preventing fungus in buildings is part of my job so I've learnt a lot about this subject.)


PostPosted: Fri Jul 11, 2008 11:02 am    Post subject: Reply with quote
I can imagine, Peter!

Do you have a suggestion on how to treat saltpeter on the floors?
My father's house has saltpeter on the floors in the ground floor.


PostPosted: Fri Jul 11, 2008 11:25 am    Post subject: Reply with quote
Orio wrote:
I can imagine, Peter!

Do you have a suggestion on how to treat saltpeter on the floors?
My father's house has saltpeter on the floors in the ground floor.

I'm intrigued - did he use it for gunpowder?

Saltpetre is either potassium or sodium nitrate. It's a white powdery substance when it's dry, but it dissolves in water very easily so often you can't actually see it. It appears on floor and walls as moisture dries out (it's called efflorescence) and usually the moisture has been drawn up from the soil by capillary action, bringing the dissolved salt with it. So this could mean the floor is not damp-proof. Also the salt is hygroscopic - it draws in moisture from the air and causes damp patches that way. If the salt is coming up from the soil you'll never stop it until the floor is made damp-proof.

I don't want to hijack Laurence's thread with this, but I'd welcome the chance to help if you could tell me more about the floor finish and the problem the salt is causing. The picture of the outside of your father's house got me really interested in its condition. Maybe you could send me some pictures.


PostPosted: Fri Jul 11, 2008 11:33 am    Post subject: Reply with quote
peterqd wrote:
Orio wrote:
I can imagine, Peter!

Do you have a suggestion on how to treat saltpeter on the floors?
My father's house has saltpeter on the floors in the ground floor.

I'm intrigued - did he use it for gunpowder?

Saltpetre is either potassium or sodium nitrate. It's a white powdery substance when it's dry, but it dissolves in water very easily so often you can't actually see it. It appears on floor and walls as moisture dries out (it's called efflorescence) and usually the moisture has been drawn up from the soil by capillary action, bringing the dissolved salt with it. So this could mean the floor is not damp-proof. Also the salt is hygroscopic - it draws in moisture from the air and causes damp patches that way. If the salt is coming up from the soil you'll never stop it until the floor is made damp-proof.

I don't want to hijack Laurence's thread with this, but I'd welcome the chance to help if you could tell me more about the floor finish and the problem the salt is causing. The picture of the outside of your father's house got me really interested in its condition. Maybe you could send me some pictures.


Thanks Peter. Yes the house has humidity problem in the ground floor. The house was actually a barn that my father and a construction worker restructured in the early 70s.
The house was made with little money and so the floor was probably not made with the technology that is required to avoid such problems.
I have already made restructuring to the roof and the terraces, but to fix the floor a lot of money is needed and so for the moment the thing is delayed Sad
I will surely post some pictures.


PostPosted: Fri Jul 11, 2008 4:49 pm    Post subject: Reply with quote
No problem about "hijacking"! I love to learn new things, and didn't know the properties of the saltpetre before.

I'm wondering if it might be as "simple" as putting a layer of Tyvek or similar moisture barrier down?


PostPosted: Fri Jul 11, 2008 6:38 pm    Post subject: Reply with quote
Laurence wrote:
No problem about "hijacking"! I love to learn new things, and didn't know the properties of the saltpetre before.

I'm wondering if it might be as "simple" as putting a layer of Tyvek or similar moisture barrier down?

Good! Then firstly I need to correct what I said earlier. True saltpetre (potassium nitrate) is the flammable stuff used to make gunpowder and in fireworks, cigarettes and toothpaste! You know in the old Westerns, when you see a trail of gunpowder burning, or when the baddy lights a fuse with his see-gar, that's saltpetre. The white fluffy salts that form when structural dampness is drying out are chlorides or sulphides. Normally they are in the soil (or in the structural materials). They dissolve in groundwater and are drawn up into the structure by capillary action. They're often called saltpetre, but it's not strictly correct.

A membrane is what's needed but it would need to be below the floor finish and have enough weight above it to prevent the moisture lifting it, so Orio is right that it isn't a simple or cheap job. If there's a nice flat concrete surface it could be sealed with an epoxy membrane, but that's very expensive and has to be done by specialists. Also, as it's an old barn, my bet is that the walls are damp too. That's often simply cured by injecting a silicon-based liquid, but any plaster up to 1 metre high would need to be renewed because of the hygroscopic salts already there, so again it's a major job.

If our Tyvek is the same as yours over there, it's a breathable woven membrane for roofs and timber-framed walls. It allows water vapour to escape while keeping out liquid rainwater, but under constant damp conditions and under the pressure of capillary action it wouldn't be effective as a damp-proof membrane in a solid floor. Normally a heavy gauge polythene sheet or two or more coats of liquid bitumen would be used.


PostPosted: Mon Jul 21, 2008 6:08 pm    Post subject: Reply with quote
Sandie wrote:
These photos are amazing!

PS. Is it risky to use such great lens in rainforest ? I mean whether it is easy to get fungus there?


Sandie: People who have their homes directly within the rain forest valleys have big problems with fungus and mildew in their lenses, and other glasswork as well.

I always try to take a few minutes to "open up" my lenses to the sunshine out on my patio, on every sunshine day. I also store them out of the leather cases, and in a glass cabinet that has a small UV bulb in it.


PostPosted: Mon Jul 21, 2008 6:20 pm    Post subject: Reply with quote
Magnificent set of pictures! These rival your medium format efforts, such
beautiful colors you're getting with the Flek/K110D combo!

Bill


PostPosted: Mon Jul 21, 2008 6:48 pm    Post subject: Reply with quote
Seeing these just makes me want to head out to our UK equivalent myself Larry. Cool

You need to get one of these Flek 20 thingies yourself Bill....

Either before or after the Planar 1.4/50 will do.... Wink Laughing


PostPosted: Mon Jul 21, 2008 7:16 pm    Post subject: Reply with quote
I have looked at these over and over. Every time this thread comes up I look again. Just beautiful images.

We probably have similar here, but I would walk right by it and never see it.


PostPosted: Mon Jul 21, 2008 8:21 pm    Post subject: Reply with quote
Bill wrote: Magnificent set of pictures! These rival your medium format efforts, such beautiful colors you're getting with the Flek/K110D combo!

I hope, Bill, to improve my medium format scanning. I would THINK that with the big transparency, I could exceed the output of the Flek/K110D combo... Confused
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Bob wrote: Seeing these just makes me want to head out to our UK equivalent myself Larry.

I ALWAYS want to head back out to the rain forest, Bob! Thanks for commenting!
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Ron wrote: I have looked at these over and over. Every time this thread comes up I look again. Just beautiful images. We probably have similar here, but I would walk right by it and never see it.

Perhaps the "walking right by it and not seeing it" is a product of familiarity? In other words, having grown up at the edge of the rain forest might have made me (or anyone else) more aware of the little vignettes within the forest? I think this might be possible, because if I go to street-shooting mode, I can NEVER get the same types of images as someone who has spent a lot of time in the city streets.
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