November, 2008


23
Nov 08

Outdoor Photographer, November 08 issue

This spring, I did subscribe to the US American Outdoor Photographer magazine. Not only does it cover many interesting topics about nature photography and has convinced me with an issue I bought at the airport somewhere that they have topics of interest for my passion, but also it is – compared to German language magazines – dirt cheap (when subscribed).

As I am an eager reader not only of Internet blogs, but also of old-school printed material, I decided to reflect more about the learnings from my lecture, and I will start today with a list of enlightments gained from the November 2008 edition of Outdoor Photographer:

  1. There is an article about Digiscoping, which I find interesting because of the maybe affordable access to large magnifications. They list the need for using a Compact camera with at least a 3-4x zoom in order to avoid the vignetting caused by the circular image rendered by the scope.
    Honestly, I would not consider using a compact camera for Digiscoping, being used to the image quality and speed of the SLR. They claim, and I didn’t knew that before, that using a DSLR with e.g. a specific adapter or a 50mm lens with the right filter thread provides less magnification than using the compact, but of course you retain the advantages of the faster camera.
    What I also didn’t knew is that the fixed eyepieces of the scope have a larger field of view than the zoom eyepieces.
    Interesting to note for all those Sony Alpha owners – they report that the in-camera stabilizer usually doesn’t work for Digiscoping. Too bad, *that* would have been a combo! As a Nikon guy, I just shrug ;-)
  2. Rob Sheppard wrote he would prefer Lightroom plus Photoshop Elements over a new CS version. This is interesting, I am using Photoshop Elements and CS3 so far. Maybe I should indeed look at LR soon. [Adding LR to the Gear Wish List in the background]
  3. In their Editor’s Picks they list the Ansmann Digicharger Vario. Looks like you cannot only charge all kings of Lithium-Ion batteries, but also standard AA. I sense an opportunity to reduce my travel bag – for the D300, the D40, and the SB800 I usually carry three different charges (sigh). This needs to go on my list as well. Luckily, we are approaching Xmas fast.
  4. For home projection, there is a special wall paint from paintonscreen.com that can replace a dedicated projection screen. They even have a German version of their website, giving hope that I could actually get it in Germany. Now this is interesting! I have to research on this a bit more.
  5. Of the 6 silver bullets for better landscape images from Guy Tal, I liked the “Get Out More” best, as I think this exactly hits my weak spot. Add “Be There Before Sunrise” and I pledge guilty. Looking at Guy’s homepage in the web, I was slightly disappointed that this article seems to have been published quite some times in slight variations, so if you are interested, visit his website!
  6. I had always wondered about how “magnification” and “mm focal length” were interchangeable. For the Digiscopes, they listed 180x magnification as being equivalent to a 9000 mm tele lens (wow, by the way). And looking at these numbers again, I figure they are just based on the 50 mm “normal” lens, as 50 mm x 180 = 9000 mm. I wonder if this is physically correct… as far as I remember a real “normal” lens would be 43 mm, and not 50 mm. [Let me check Wikipedia].

11
Nov 08

A walk at the lake, with birds

Last sunday I had booked a guided walk into the Ramsar area Ismaninger Speichersee, organized by the Munich Volkshochschule, and led by Manfred Siering from the Ornithologische Gesellschaft Bayern. Phew, four links in one sentence.

We started at 8 am at the S-Bahn station in Ismaning, from where it is just a 3 km drive to the BMW area and the (aritifical) lake which is one of the major wetland areas in Bavaria, and of high importance for migrating birds. The part we visited is not accessible to the public, you can get into it only with a guide like I did today.

Highlight today was the Lesser Spotted Woodpecker I could photograph with the help of our guide who attracted the little bird. Well, I know, this is not art, more of a better ID photo.

kleinspecht

Now, first for my own IDs

  1. Great Crested Grebe / Haubentaucher
  2. Cormorant / Kormoran
  3. Grey Heron / Graureiher
  4. Great Egret / Silberreiher
  5. Mute Swan / Höckerschwan
  6. Greylag Goose / Graugans
  7. Canada Goose / Kanadagans
  8. Mallard / Stockente
  9. Red-crested Pochard / Kolbenente
  10. Common Pochard / Tafelente
  11. Tufted Duck / Reiherente
  12. Common Merganser / Gänsesäger
  13. Eurasian Coot / Blässralle
  14. Northern Lapwing / Kiebitz
  15. Black-headed Gull / Lachmöwe
  16. Great Tit / Kohlmeise
  17. Eurasian Blue Tit / Blaumeise
  18. Common Chaffinch / Buchfink

With the help of the guide, I also saw (the guide identified)

  1. Little Grebe / Zwergtaucher
  2. Gadwall / Schnatterente
  3. Greater White-Fronted Goose / Bläßgans
  4. Northern Pintail / Spießente
  5. Northern Goshawk / Habicht
  6. Eurasion Sparrowhawk / Sperber
  7. Common Buzzard / Mäusebussard
  8. Yellow-legged Gull / Mittelmeermöwe
  9. Lesser Spotted Woodpecker / Kleinspecht
  10. Redwing / Rotdrossel
  11. Long-tailed Tit / Schwanzmeise
  12. Marsh Tit / Sumpfmeise
  13. Yellowhammer / Goldammer
  14. Common Reed Bunting / Rohrammer
  15. European Goldfinch / Stieglitz
  16. Rook / Saatkrähe
  17. Carrion Crow / Rabenkrähe

I was looking the other way when the group / guide saw

  1. Eurasian Tree Sparrow / Feldsperling
  2. Common Starling / Star
  3. Eurasian Magpie / Elster
  4. Eurasian Jay / Eichelhäher
  5. White Wagtail / Bachstelze
  6. Meadow Pipit / Wiesenpieper
  7. Water Pipit / Bergpieper

Most impressive was the ability of our guide’s audio identification. He just stepped up to the wood, and immediately listed audio confirmation for

  1. Water Rail / Wasserralle
  2. Great Spotted Woodpecker / Buntspecht
  3. Wren / Zaunkönig
  4. Eurasian Robin / Rotkehlchen
  5. Common Blackbird / Amsel
  6. Common Chiffchaff / Zilpzalp
  7. Goldcrest / Wintergoldhähnchen
  8. Eurasian Nuthatch / Kleiber
  9. Short-toed Treecreeper / Gartenbaumläufer
  10. European Green Woodpecker / Grünspecht
  11. European Greenfinch / Grünfink
  12. Eurasian Siskin / Erlenzeisig

All I could hear was the engines of the airplane directly overhead (it’s very close to the Munich airport), and something I thought was a Robin…

BTW, why bother listing all these names in English and German? Well, I am learning the English bird names, and believe me, this is quite an effort for a non-native speaker!


8
Nov 08

Roe Deers instead of Birds, focus stacking tele photos

The guide had already announced that in the apple plantation we would pass through on our walk from the visitor center into the nature reserve, there would be a high likelihood of seeing some Roe Deers. We did see some far away on our way into the area, but only on our way back we also encountered the one he had described as being an “albino deer”, albeit without red eyes.

They were relatively tame, because according to him they “knew the plantation was fenced, and no dogs or humans would leave the path”, and these two actually had no trouble with me getting down low, setting up the tripod and taking some dozen pictures through the mesh wire fence.

roe_deers_front_focus

Now, how did I compose? Well, obviously I placed the albino (well, it is just really light-colored) out of the center to the lower right, and made sure that I had a nice framing using the plants. Once I had it framed I snapped some pictures, being nervous that I do not get it into focus… I still have not yet fine tuned the Sigma 100-300/f4 I am using using the new manual focusing feature of my D300. This proved to be not a problem at all, and the sharpest images are those where I placed the autofocus point on the ear of the deer using the multi-selector control.

Then, another deer passed through the frame, and I snapped some more images with it in different poses, walking, standing, checking. I liked the presented image best because I didn’t have one where the two interacted – and only that would make it successful for me. Now in this one, both interact with the photographer, and thus the viewer.

The next challenge was, that I knew I could not possibly get both into focus. Now at home I can check the DOFmaster, and estimate the range of the closer of the two at probably 20 meters, which results with the selected aperture of f/5 (get a fast shutter speed when doing wildlife! This gave me 1/500s at ISO 400) in a depth of field of only 88 centimeters, clearly not enough. If I had stepped down to f/22 I would have had 4 meters, which could (just) have sufficed, but of course exposed me to the danger of motion blur at about a 1/25s I would have ended up with. I actually did try quickly an f/10 with 1/100s (not knowing in the field that it would also just give me 1.77 m, still not enough), but discarded that as also not being sufficient after a quick check on the display.

So knowing I had insufficient depth of field, I had snapped a second frame very quickly, focusing on the second deer.
roe_deers_back_focus
Now looking at both images, I like the one with the focus on the lower right deer better, but still my eyes keep jumping to the second, and being disappointed that it is not sharp. Obviously I have two competing subjects, and one of them is out of focus, ruining the image.

Solutions? Either take a frame with only the first deer, or next time use the large aperture to get both in focus. Workaround? Fix it in Post Production!

I have used the free program CombineZP in this case. I read about, but did not try, Helicon Focus, which is a commercial software package for the same applications.

roe_deers_focus_stacked

Wow, you say, that worked well. And so easy! Not quite. If you could see the 12 MP version of the image I of course did not upload, you would clearly notice that I did focus on each of the two deers, but as I have only two shots I have none focused on the grass between them. It is not immediately apparent (if at all) in the screen resolution version, but this nic prevents this image from being used at full res. So next time I try this, I should remember to make a nice focus series including the distances between the two subjects. Learned something again ;-)


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