louis

26 Apr 2007 • 576 views
 
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photoblog image Double Weir

Double Weir

A bit disconserting is the part behind the backmost weir wall. Everything except the two extreme sides is just one huge reflection in the weir dam. The effect of Tv can be seen in the cascading water.

Since there were some comments and questions over the Tv setting that I used over the last few days, I have decided to provide some general info here:

In my reply to some of you I did explain how you could emulate Tv in (Program AE) mode. Any DSLR should have <P> or Program AE.  Point & shoot can be another kettle of fish. I just had a quick check on my Olympus C765 how many steps to get there - it is hidden in the menu's and you gotta know your way around.


Tv is a selector setting - your DSLR camera may not have it. In that case you can use <P> where you set the shutterspeed and let the camera choose the f-stop (aperture or lens opening). The added advantage from the Tv is that it will also control the apperture in a way that will give me sharp foreground and background - to an extent. See today's picture. But using <P> you should be able to copy what I have been doing with Tv in all my pictures since Monday.


Doing this with point & shoot can be difficult. With your camera on <P> you should be able to go into the menu and set the shutterspeed and/or aperture. If you can't do this, understand why your camera was more affordable than the higher spec models. But what nev says about taking a DSLR back if it can't provide you with the possibility is quite correct.

Please - the comment about affordability is not meant in a derogative manner.  Digital cameras are all program driven and computers on their own. It is a simple truth that the more upscale your camera, the more program functions come with it. I can't afford a EOS-1D Mark III either and some of you may. The point is that you should understand that your camera has limitations, and it would be good if you knew how to deal with it. It also means you should know how to use what you have.

Double Weir

A bit disconserting is the part behind the backmost weir wall. Everything except the two extreme sides is just one huge reflection in the weir dam. The effect of Tv can be seen in the cascading water.

Since there were some comments and questions over the Tv setting that I used over the last few days, I have decided to provide some general info here:

In my reply to some of you I did explain how you could emulate Tv in (Program AE) mode. Any DSLR should have <P> or Program AE.  Point & shoot can be another kettle of fish. I just had a quick check on my Olympus C765 how many steps to get there - it is hidden in the menu's and you gotta know your way around.


Tv is a selector setting - your DSLR camera may not have it. In that case you can use <P> where you set the shutterspeed and let the camera choose the f-stop (aperture or lens opening). The added advantage from the Tv is that it will also control the apperture in a way that will give me sharp foreground and background - to an extent. See today's picture. But using <P> you should be able to copy what I have been doing with Tv in all my pictures since Monday.


Doing this with point & shoot can be difficult. With your camera on <P> you should be able to go into the menu and set the shutterspeed and/or aperture. If you can't do this, understand why your camera was more affordable than the higher spec models. But what nev says about taking a DSLR back if it can't provide you with the possibility is quite correct.

Please - the comment about affordability is not meant in a derogative manner.  Digital cameras are all program driven and computers on their own. It is a simple truth that the more upscale your camera, the more program functions come with it. I can't afford a EOS-1D Mark III either and some of you may. The point is that you should understand that your camera has limitations, and it would be good if you knew how to deal with it. It also means you should know how to use what you have.

comments (18)

hehe. Very nice shot! Love the effect on the water. grin
Louis: Thank you Tomas
  • Kay
  • Portland, OR, city of bridges
  • 26 Apr 2007, 03:01
Hi Louis, I like this tv effect and am going to study your words and pics more. I've been want to work it into my pictures. Thank you for the very nice photo, and all the great information. smile
Louis: Thank you Kay.
Again Louis - totally inspired!
Louis: Nice comment, thank you ade
I love the frozen water.
Louis: Thank you Chantal
  • nev
  • Australia
  • 26 Apr 2007, 13:04
is tomorrow the triple weir. like this one even more louis. you almost have enough information above to be a wiki. nice work.
Louis: Sorry couldn't find a triple. Thanks for your comment yesterday that inspired wiki - also a way to to do something when there is nothing worthwhile on TV - boring to watch a slaughter.
  • Ginnie
  • Atlanta, GA, United States
  • 26 Apr 2007, 13:45
The lighting is just spectacular on this weir, Louis. Even though there is so much rock, it feels soft and dreamy with the Tveffect. I like it! And thanks again for the explanation, which you're so good at!
Louis: Ag, what a nice comment. Thanks Ginnie.
Louis, I am sure I am getting to be a pain in the neck, but I am still confused as to what the difference between this tv program and a regular shutter priority setting is (where you specify the shutter speed and the camera calculates the aperture). It seems to me that at a given shutter speed and a given ISO setting there can be only one aperture that will result in a properly exposed shot. Your description sounds like the tv setting does something more complicated although I don't see where it can find any wiggle room without touching the sensitivity. Or am I just confused about some Canon-only terminology and the tv mode is the same as shutter priority on other cameras?
Louis: Tv is the name of a setting I can dial on the Canon - full name is Timer Valuation. It is a specific shutter priority. It also may be a Canon only feature - you are right there. With normal shutter priority you choose the speed, yes. With Tv the speed is chosen for you at 1/5 and the aperture is adjusted accordingly. In other words a pre-set program that sets both speed and aperture to create a specific effect. Most cameras have the portrait, landscape, sport, indoor settings. With this Canon the Tv is just added to the range. And like I have explained you can easily copy the program setting with shutter priority or Program AE by just selecting the right speed.
Your remark about the given shutter speed and given ISO is not hundred percent. If speed and ISO is given, you can still have different apertures that provide good pics, each with its own result. Depth of focus will vary amongst others.
Lovely shot Louis
Really like the soft look of the water
Have to try this myself
Louis: Thank you Magnus, you have so many waterfalls and rapids in Norway - lots of opportunities
Louis, now we're talking grin I think this one adds just what i was missing in your two latest pics. The background is really strange - and I like that smile
Louis: Well I promised yesterday I will post one to your liking very soon smile Thanks for your comment Aksel.
  • Ellie
  • 27 Apr 2007, 00:12
It's a nice picture Louis, dreamy other worldly feel to it. I like it smile

wink On Olympus is called S.
Louis: Thank you Ellie.

The S on my Olympus is for Shutter Priority where you choose speed. With Tv I don't have to choose speed, since it is about a specific effect. I think easiest to understand is that after portrait and landscape you can also have Tv which is not available on all cameras. But if you don't have Tv, you can copy it by selecting S and choosing 1/5 second. Your camera may use a different apperture than mine with Tv because it will not be aware what specific effect you are after. So it will probably be better to go to M and choose speed at 1/5 and depending on light a high aperture.
Lovely shot. Is that an HDR?
Louis: Thank you Anup, what is an HDR?
Wow - Interresting, I've to try that Louis ! Thanks for the tip
Louis: Thanks for the comment and you should try it in those little forest streams you have shown us.
A perfect explanation for the subject of the TV. It is question to prove it and to again read the manuals of my small compact one of Sony (THAT DESIRE I MUST TO BUY CANON to ME EOS 400D) in order to see if with your indications I can be able something similar to this preciosidad that you have done here. This is really a garbage dump? Be that as it may, this photo goes to my likey's! [G]
Louis: Thanks for the comment Jose-Angel. It is an honour to be included in your likeys.
And another thing, what time you put to make this type of photos?
Louis: The shutterspeed was 1/5 second in the later afternoon with the sun behind me.
  • 10cré
  • Paris
  • 30 Apr 2007, 18:29
a strange effect I find! very nice !
Louis: Thank you 10cré
This has been a nice series. It's interesting to see the effects you can get.
Louis: Thank you Red Pen - at some stage I will blog grasses swaying in the wind, wher I have also used the Tv setting.
Lovely, peaceful image.
Louis: Thank you Ed, i took a look at your blog - seems to me you have a fun series going there
  • Julischka
  • the centre of EU
  • 1 May 2007, 18:33
Another beautiful image. This effect is really fascinating, confusing the eye.
Louis: Thanks for the comment Julischka. What I found interesting is that I only saw the reflections when I first had the picture on a computer screen.

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camera Canon EOS 400D DIGITAL
exposure mode program mode
shutterspeed 1/5s
aperture f/29.0
sensitivity ISO100
focal length 98.0mm
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