So it was only a 100 mm lens setting; amazing! However the sensor area in today's digital cameras is much smaller than the 24x36 mm size of the film cameras, so the lens focal length is effectively multiplied by the difference in size. That's probably more like a 250-mm lens would be on a film camera; unfortunately I don't know the actual multiplier ratio although many camera spec sheets provide a table...

Great set of photos from that distance!

In post # 180, all those vehicles west bound (coming at us) is just not right. There is like 4 or 5 lanes across.

I think this effect was explained on another thread somewhere. It has to do with the kind of lens Jim Kyle was talking about. I am no expert in photography so I know nothing of this.

Those are absolutely not photoshopped.

You are correct, downtown does not appear to be that big, because you are further away from it.

When you magnify your vision, distant objects fill the background. In fact, the lens itself is not doing anything unnatural. When you look at distant objects (from the naked eye), there is no distance reference. Without distance reference, objects far away appear to be stacked on or behind each other with little loss in relative size or scale.

For example, the moon is the exact same size on the horizon as it is when it is directly overhead. The moon appears larger because you have a objects to relate to on the ground, when it is overhead you have no comparable objects so it appears smaller. It is an optical illusion that it appears larger, it takes up the same amount of sky on the horizon as it does overhead....

Leading to this....

Go to an empty field with hay bales. Some are close and some are far away. Line yourself up to place a distant haybale right "next" to a considerably closer one. Stand 200 feet away from the closest one. Now imagine you can "zoom" in close up. The distant one will appear to be only feet behind the close one. Yet when viewed perpendicular or diagonally instead of parallel they are actually further apart. When you place distant objects in parallel or close parallel to each other and zoom in, you eliminate or reduce depth perception and objects no matter how far apart can appear to be very close.

The pictures posted are zoomed in to a very small "patch of eyesight". Skyline is the distant haybale, the bridge and vehicles are the closest haybale. They are parallel and zoomed in. Our eyes don't zoom, we have wide angle vision and see a much broader picture. if our eyes were set to 160mm and had that magnification, we'd see everything as in those photos, and would not be able to see anything 300-400 feet in front of us very accurately.

Those are absolutely not photoshopped.

It's a long distance telephoto lens on a digital single lens reflex (D-SLR) camera and is definitely not photoshopped.

On my DSLR the multiplication factor is just under 4, so the 100-mm lens used to take the photo would be the equivalent of a 400-mm lens on a 35-mm film SLR. For information, the longest lens in common use on 35 mm cameras is 135 mm, so this one is about triple the magnification you usually see in telephoto shots.

Most cameras use a crop factor of 1.6x, not sure where you got 4x from?

The EXIF data for photos I shot recently shows a focal-plane diagonal of 11 mm, while the diagonal of a 24x36 mm frame is 44 mm. That's where the 4x figure comes from. The maximum wide-angle setting has focal length of 9 mm, which corresponds to a 35 mm focal length, as a check on the calculation.

However different DSLRs probably have different-sized sensors, so this would apply only to the rather ancient Olympus E-10...

The EXIF data for photos I shot recently shows a focal-plane diagonal of 11 mm, while the diagonal of a 24x36 mm frame is 44 mm. That's where the 4x figure comes from. The maximum wide-angle setting has focal length of 9 mm, which corresponds to a 35 mm focal length, as a check on the calculation.

However different DSLRs probably have different-sized sensors, so this would apply only to the rather ancient Olympus E-10...

Yes, I have an ancient E-500 and it uses the 4/3 system.

The EXIF data for photos I shot recently shows a focal-plane diagonal of 11 mm, while the diagonal of a 24x36 mm frame is 44 mm. That's where the 4x figure comes from. The maximum wide-angle setting has focal length of 9 mm, which corresponds to a 35 mm focal length, as a check on the calculation.

However different DSLRs probably have different-sized sensors, so this would apply only to the rather ancient Olympus E-10...

OMG, Jim. Not being a photographer that sounds like a foreign language to me. I glad you and some other posters understand that.

OMG, Jim. Not being a photographer that sounds like a foreign language to me. I glad you and some other posters understand that.

Actually, it's quite simple. I think this formula best explains it:

http://ej.iop.org/images/1742-5468/2009/07/P07025/Full/jstat322118eqn53.gif

:wink:

Yep, every technology has its own jargon! EXIF data is a lot of information that's recorded by the camera in the image file, alongside the image itself, and is quite handy for later reference. Professional image editing programs can read and report this data. Among other things, it records the date and time at which the image was taken, plus lots of technical detail about the camera settings. The "diagonal" is exactly like the "size" rating for TVs; a 40-inch TV screen is less than 40 inches wide, because that measurement is made diagonally across the face of the screen. The "focal-plane" is the location of the sensor that actually sees the image, and focal length is the distance from the optical center of the lens to the face of the sensor. All of which is probably lots more than you ever wanted to know.

One of my favorite bits of photo jargon is "circle of confusion" which actually refers to what makes an out-of-focus picture blurry. Each point of light forms a circle rather than a point, and they overlap and blur each other out. However, "circle of confusion" always reminds me of my mental state when I was first encountering all these terms...going round in circles, quite confused by it all!

Thanks for the explanation. Now I totally understand everything. (NOT)

very cool

wow very cool pics

For example, the moon is the exact same size on the horizon as it is when it is directly overhead. The moon appears larger because you have a objects to relate to on the ground, when it is overhead you have no comparable objects so it appears smaller. It is an optical illusion that it appears larger, it takes up the same amount of sky on the horizon as it does overhead....

Those are absolutely not photoshopped.

When at or near the horizions, light from the moon (and sun, for that matter) pass though more of the earth's atmosphere, scattering more of the light and making their disks look bigger than they really are. This phenomenon also causes the rising and setting sun and moon to look more reddish, as the atmosphere scatters more blue light than red. As they rise in the sky, they penetrate less of the atmosphere and less light is scattered. There's your science lesson for today.

When at or near the horizions, light from the moon (and sun, for that matter) pass though more of the earth's atmosphere, scattering more of the light and making their disks look bigger than they really are. This phenomenon also causes the rising and setting sun and moon to look more reddish, as the atmosphere scatters more blue light than red. As they rise in the sky, they penetrate less of the atmosphere and less light is scattered. There's your science lesson for today.

These scientists disagree (and NASA also referenced this article). In fact, they say the opposite of what you do. The moon should appear smaller on the horizon due to atmospheric refraction.

The Moon Illusion (http://www.lhup.edu/~dsimanek/3d/moonillu.htm)

The percentage of sky the moon occupies is virtually the same regardless of it's position in the sky. The moon appears larger near the horizon because we have visual references, and the lack of references when directly overhead makes it appear smaller.

Anyway, careening off-topic.

I took this picture on Sunday afternoon.
http://farm9.staticflickr.com/8510/8463464437_9994c518d8_b.jpg

http://farm9.staticflickr.com/8382/8477245479_41ec071b03.jpg (http://www.flickr.com/photos/okcpics/8477245479/)
2/15/13 - HDR (http://www.flickr.com/photos/okcpics/8477245479/) by racnokc (http://www.flickr.com/people/okcpics/), on Flickr

http://farm9.staticflickr.com/8519/8477244989_73afb56c67.jpg (http://www.flickr.com/photos/okcpics/8477244989/)
2/15/13 - HDR (http://www.flickr.com/photos/okcpics/8477244989/) by racnokc (http://www.flickr.com/people/okcpics/), on Flickr

[url=http://www.flickr.com/photos/okcpics/8477244989/]http://farm9.staticflickr.com/8519/8477244989_73afb56c67.jpg (http://www.flickr.com/photos/okcpics/8477245479/)
2/15/13 - HDR (http://www.flickr.com/photos/okcpics/8477244989/) by racnokc (http://www.flickr.com/people/okcpics/), on Flickr

Great shot!

Here are some more fantastic photos from rusellc:

http://farm9.staticflickr.com/8248/8485732423_fc252aa478_b.jpg


http://farm9.staticflickr.com/8514/8485732459_55a76559e7_b.jpg


http://farm9.staticflickr.com/8099/8486823750_78b7cb06e2_b.jpg


http://farm9.staticflickr.com/8526/8485731097_00518b0eb4_b.jpg

^^ those pics are sweet!!

The second picture will be even better with stadium lights on, river filled and night rowing. Also, future highrises ;-)

Not sure if this has been posted already. From IonOklahoma's Facebook page. https://www.facebook.com/ionokonline?ref=stream#!/photo.php?fbid=321529291245407&set=a.304521172946219.77090.198853236846347&type=1&theater

Not sure if this has been posted already. From IonOklahoma's Facebook page. https://www.facebook.com/ionokonline?ref=stream#!/photo.php?fbid=321529291245407&set=a.304521172946219.77090.198853236846347&type=1&theater

Oh yeah, but not in this thread. Those were all posted in the Devon Tower thread a while back but since Pete changed the volume of posts per page, there's no telling where they're at now, lol.

Ah, I got you. haha... :)

A couple of similar night shots are posted on page 195 starting with post #9711.

You can also go here:

http://www.facebook.com/InsightVisualMedia/photos_stream

Cooper Ross does awesome work!

Wow some of those were amazing and as well as those houses. One had a lazy river!?!?!?!?! SWEET!!! lol.... Beautiful pcitures of downtown though!

A nice winter pic looking towards downtown, from early Feb.

http://farm9.staticflickr.com/8379/8526631305_3713b7743c_h_d.jpg (http://www.flickr.com/photos/73409321@N00/8526631305/in/photostream/)

Photo by Laban West (http://www.flickr.com/photos/73409321@N00/)

Looking for a skyline picture with the Murrah Building in it, I came across the below photo. I figured it out quickly enough but talk about making your head hurt!

3438

Whyyyyyy did it make your head hurt?

Because the image is mirrored. Being an impossible angle, it just looks so wrong.

My great friend and photographer, Nevin Kallepalli, visited Oklahoma City in January. Here are some pictures I hope you all will enjoy:

http://i24.photobucket.com/albums/c23/chasemyface159/OKC/R1-03835-0024.jpg

http://i24.photobucket.com/albums/c23/chasemyface159/OKC/R1-03835-0011.jpg

http://i24.photobucket.com/albums/c23/chasemyface159/OKC/R1-03835-0015.jpg

http://i24.photobucket.com/albums/c23/chasemyface159/OKC/R1-03835-0016.jpg

http://i24.photobucket.com/albums/c23/chasemyface159/OKC/R1-03835-0022.jpg

http://i24.photobucket.com/albums/c23/chasemyface159/OKC/R1-03835-0018.jpg

http://i24.photobucket.com/albums/c23/chasemyface159/OKC/R1-03835-0020.jpg

If you would like his website link, let me know. FYI - this is not his typical subject matter.

Because the image is mirrored. Being an impossible angle, it just looks so wrong.

Haha, gotcha, honestly, I didn't notice it earlier, lol.

Beau Wade has posted a nice time lapse video from his office, high in Devon Tower:

OKC Time Lapse Window on Vimeo (http://vimeo.com/61641150)

http://b.vimeocdn.com/ts/432/257/432257206_640.jpg

It's pretty cool.

I love this picture!
http://www.moveupoklahoma.com/wordpress/wp-content/uploads/2012/08/Downtown-OKC-from-The-gold-dome-tower.jpg

Source: What a Great View of Downtown Oklahoma City taken by an IPhone :: Democrats of Oklahoma News and Information (http://demookie.com/what-a-great-view-of-downtown-oklahoma-city-taken-by-an-iphone/)

i love this picture!
http://www.moveupoklahoma.com/wordpress/wp-content/uploads/2012/08/downtown-okc-from-the-gold-dome-tower.jpg

source: what a great view of downtown oklahoma city taken by an iphone :: Democrats of oklahoma news and information (http://demookie.com/what-a-great-view-of-downtown-oklahoma-city-taken-by-an-iphone/)

beautiful!

Doea anyone have 3D images of downtown? I use several pictures of downtown OKC posted over the years for my computer desktop and the other day I had to use my computer on the TV and the 2D pictures converted to 3D were very cool, like having a model of OKC in my living room, but it would be even better if the photos were taken in 3D.

Not the best picture I've taken, but I love the juxtaposition of the Capitol with the downtown skyline in this view (from I-35 southbound). I also didn't notice the billboard while taking this! :mad:

http://i47.tinypic.com/2m63as6.jpg

Nice pictures....:D

Some from this weekend's Starlight Supper:

https://sphotos-a.xx.fbcdn.net/hphotos-ash3/644695_531512280220491_804777739_n.jpg


https://sphotos-b.xx.fbcdn.net/hphotos-ash3/537407_531512450220474_1217692576_n.jpg


https://sphotos-b.xx.fbcdn.net/hphotos-ash3/532207_531512210220498_1517584668_n.jpg


https://sphotos-a.xx.fbcdn.net/hphotos-ash3/521636_531512160220503_719038282_n.jpg

^ Heh, you beat me to the punch. I posted those, and some others, to the "Weekend Events" thread.

http://farm9.staticflickr.com/8113/8654525994_091fa2ebee_b.jpg

Another one from just west of the end of the canal. I like to picture this area with less industrial and more residential around Rocktown.
http://farm9.staticflickr.com/8259/8653423635_6264246af8_b.jpg

3647

^^ I really like that picture! A renovated FNC would make it my favorite picture of the OKC skyline.

I loved this one from the Starlight Supper, as well. Just gorgeous.

https://sphotos-b.xx.fbcdn.net/hphotos-prn1/27117_533096873395365_1838232053_n.jpg

Like^^^^

When those trees mature, that picture will be most amazing!

Our skyline looks dense in that photo.

Our skyline looks dense in that photo.

Our skyline is dense. Compare our skylines to almost any city in our part of the country and it's up there in density. It just isn't expansive...yet

Our skyline is dense. Compare our skylines to almost any city in our part of the country and it's up there in density. It just isn't expansive...yet

Definitely. The density is very noticeable from the west -- like in the picture -- & when you're downtown in the midst of it. It's just not as expansive & large as other cities around here.

I know I just paraphrased your statement Teo, but I didn't mean to. It's just simple to explain & you explained it pretty well.

Bricktown facebook page posted a cool photo from Stephen Post. Found a couple of them, actually.


Over Bricktown and the ballpark.

http://sphotos-f.ak.fbcdn.net/hphotos-ak-snc6/264596_10200497400911680_1058578313_n.jpg


Over the canal and the Land Run statues.

http://sphotos-c.ak.fbcdn.net/hphotos-ak-ash3/942740_10200497403431743_1211937222_n.jpg


Over the capitol

http://sphotos-a.ak.fbcdn.net/hphotos-ak-ash3/225701_10200497385151286_1362126568_n.jpg


Photos by Stephen Post.

I loved this one from the Starlight Supper, as well. Just gorgeous.

https://sphotos-b.xx.fbcdn.net/hphotos-prn1/27117_533096873395365_1838232053_n.jpg

Multiple thumbs up!

Not the sharpest pic, but a fun one.

https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-snc6/227784_3984173612803_291427681_n.jpg (https://www.facebook.com/photo.php?fbid=3984173612803&set=p.3984173612803&type=1&relevant_count=1)

Source: https://www.facebook.com/pages/Advanced-Flight-Training-Solutions/500393130013165

Here's a great shot from koco's ulocal photo page:

http://media.kickstatic.com/kickapps/images/63269/photos/PHOTO_19026506_63269_7225516_ap_420X315.jpg (http://media.kickstatic.com/kickapps/images/63269/photos/PHOTO_19026506_63269_7225516_ap.jpg)

downtown view from broadway and 6th

(click on the pic for the full resolution image)

Source: downtown view from broadway and 6th - Okc - KOCO's u local (http://ulocal.koco.com/_downtown-view-from-broadway-and-6th/photo/19026506/63269.html)

Another awesome shot found at koco's ulocal photo page:

http://media.kickstatic.com/kickapps/images/63269/photos/PHOTO_19027750_63269_40079283_ap.jpg

From 9th street - taken about half a minute before the storm hit downtown OKC May 8, 2013.

Source: Downtown OKC Weather - 9th Street, Oklahoma City - KOCO's u local (http://ulocal.koco.com/_Downtown-OKC-Weather/photo/19027750/63269.html)

This was posted in the Devon Tower thread. One of my favorites.3719

nm

June 03 2013

http://farm8.staticflickr.com/7415/8964884967_cc6fa6e71e_h.jpg

http://farm9.staticflickr.com/8543/8964885447_40bd4a1830_h.jpg

Fantastic photos!

Man, look at what a presence the Aloft Hotel makes on the urban landscape. Wow.