A Future Lyndsey Vonn or Bode Miller?
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Exposure and Color
By: The Wisconsin Skier In: Media, PhotographyBase Exposure
The two photos in this post illustrate are different by one F-Stop.
75 mm macro lens, F/22, 1 second at ISO 100
- ISO: 100
- Aperture: F/22
- Shutter speed: 1 second.
. Now, the camera was on my Benbo tripod.
+1 F/Stop
Now, let us compare another photo:
75 mm macro lens, F/22, 2 seconds at ISO 100
Here is the exact same shot as above, but this time I increased the exposure by +1 F/Stop. Notice the difference?
The exposure used is:
- ISO: 100
- Aperture: F/22
- Shutter speed: 2 seconds
Actually, the difference is somewhat subtle, but look at the right leaf, specifically look at the upper center part of that right leaf. Notice the part where the green seems a bit darker than the rest of the leaf and focus on that spot between the two photographs. That section you can see the green is a touch darker more “green” in the upper photograph than it is in the lower.
Double the Light
+/- 1 F/Stop means doubling the light (+1) or halving the light (-1) allowed to fall on the photographic plane. In this case, I doubled the light by doubling the shutter speed and the difference is subtle but present.
Exposure and Color
In general, the more light allowed in the more washed out colors become and that is what you can notice the fact that in the lower photo the green is more washed out.
Also, look at the little white stones, the stone in the upper photo does not appear as white as the stone in the lower photo. So, the exposure not only allows the light in so we can see the subject, but also plays a major factor in the colors in your photo.
Now, Go and Do Likewise!
Now, you go out and take set of similar photos and study the differences and how shutter speed (make sure your ISO and aperture stay the same) affect your photos!
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Lenses for Ski Photography
By: The Wisconsin Skier In: Media, Photography, SkiingNot all that long ago I noticed a visitor landing here due to a Google search looking for advice on selecting lenses for ski photography.
I will be open with you, this is not something I have thought a lot about. Most of the photography you see here is taken with a fixed lens Lumix camera. The lens has a large range of focal length, IIRC the 35 mm equivalent is about to 450 mm or so and the wide angle is pretty decent too. However, it is aperture limited with a very narrow range of apertures to choose from.
I think there are a few things about ski photography that will be helpful to the photographer on the slopes.
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Like Skiing Like Photography
By: The Wisconsin Skier In: Media, PhotographySomewhere and sometime in the distant past I recall reading a skier talking about how he thought the improvement in ski technology would make better skiers of many people. He confessed that he was wrong on that count.
Same too with photography. I find it hard to believe that with modern cameras people do not take better pictures. What it comes down more often then not is exposure exposure exposure. Exposure is a fundamental technical matter you have to master in order to take respectable photographs.
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Sony A55 Criticism Clarification
By: The Wisconsin Skier In: Media, PhotographyIn this post I register a criticism of the Sony A55 camera. I say:
That problem is in the middle of the sweep the camera decided to change the exposure and that exposure shows up as the line visible in the tree. The line is even more obvious in the full photo
This elicited a response from a Facebook (on facebook too, this would have been a great comment on the article!) friend:
I’ve read your article “Sony A55 – One Defect. [sic] Was the camera on Manual mode that time or at Aperture mode?
Ron raises a good question and here is the answer.
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Sony A55 — One Defect
By: The Wisconsin Skier In: Media, Photography
Exposure Fault
The Sony A55 Sweep Defect
The image to the right is a snippet from a full sized panorama image taken from my Sony A55, notice a problem?
In an earlier post I described the Sony A55′s sweep mode. That is the the ability of the Sony A55 to stitch together one panoramic image from a number it takes as you sweep the panorama with the camera. I often use a series of individual images to create such panoramas, taking the images is usually not too difficult (but there are a few gotchas to watch for when doing this sort of photography), but stitching together the images is rather tedious. In general, I like the feature and will be using it regularly, but it does have one problem and that problem should be evident to even the point and shoot photographer.
What is that problem?
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Sony A55 — Stock Lens & A Sweep
By: The Wisconsin Skier In: Media, Photography
Tiny Beads Make Me Happy
The camera has a sweep mode. You point the camera at one end of the panorama you want to capture, press the trigger, and then sweep the camera view across the panorama you want to capture. The only settings I can see that affect this mode are sweep to the left or sweep to the right. The camera will call bully on you if you try to trick it in this regard.
Interestingly enough, the camera also saves the imagery as video.
The only downside I have seen is I believe I have one such sweep where the exposure changes in the middle of the sweep and that exposure shift is clearly visible even to untrained eyes
Obviously, sunsets and wide vistas will be the normal subject of this mode, but I say why not use it to capture other shots and see what happens? Such is the case with the truck photograph you see above.
What are particulars on this photo?
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RIP Baby Lupine
By: The Wisconsin Skier In: Gardening, Media, Off Season, Outdoors, Photography
Germinating Lupine
What this image is, is a lupine flower just after it germinated and is one of a set of three seeds that germinated (out of about eight total). The photo was taken using my 50 mm macro lens and today I do not have the exif data immediately handy (DigiKam is having problems) so I can not tell you about the exposure. However, the photo is about as close as I can get, the full sized full resolution photo is incredibly detailed and he hairs (in the center of the sprout) you can barely see are very large, in focus and reveal, incredible detail. However, I do not want to give you too much, but look below for a snippet of those lupine hairs! The other piece of legacy equipment was my Benbo tripod and I used the delay timer to trip the exposure.
The Fine Hairs of the Lupine
Why the RIP?
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Sony A55 — My First Published Photograph
By: The Wisconsin Skier In: Gardening, Media, Off Season, Outdoors, Photography
Don Juan
I have scaled down the photograph quite a bit and when the photograph is at full size the amount of detail visible in the rose is incredible. However, you need to settle for a 300×278 watermarked photograph. It isn’t the greatest photo, the bloom is the first one coming out a less than ideal growing conditions and is not so much a thought out composition, but just a shot taking the new tool for its first spin.
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Sony A55 — Further Impressions
By: The Wisconsin Skier In: Media, PhotographyLegacy Lens Capability
This was one of the biggest selling points of the Sony line to myself. You see, that Sigma 300 mm F/2.8 lens set me back a few bucks and it wasn’t the dollars down the river I was concerned about, it was sending more down the river to replace the lens. I recently read some photography columnists and writers say just get new lenses. Well, I can not justify that extra expense and when one sees the format difference between 35 mm and APS-C multiplies the focal length by 1.5x and doesn’t cost you any speed, what is the problem?
So far, my old Minolta lenses work fine with the Sony A55. They focus quick and expose properly. However, I do have one lens that got a little beat up and the autofocus does not work (you can hear the mechanics working but the linkage between the AF motor and the lens focusing mechanism is broken) and I suspect manual exposure settings on that lens are also broke. I could get good auto-exposed manually focused shots, but when I attempted to set the exposure in full manual all of my shots turned out severely under-exposed. Yes, I did set the manual exposure to what the camera was doing in A, S, and automatic modes. I will have to check out how my other lenses manually expose.
My 2x tele-converter similarly works fine. It communicated just fine between the camera and lens and I was able to auto-focus fine with it.
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