Photography

[sidedraft]

I have an old Quantaray 500mm Mirror lens, that I believe needs a T-Mount to attach to my Nikon D5200. The trouble is I can't find a T-Mount that slips over the mounting end of the lens, which is about 49mm across.

The lens looks just like this:



The adapter that I need doesn't screw on to the lens, it just slides on to the lens, and then three set screws hold it on to the adapter.

So, does anyone have any information on such an adapter?

I have 2 T-Mount adapters:
49mm for Minolta, it fits the Quantaray
52mm for a Celestron telescope adapter

TIA

[backtrax]

Mid-flight hummingbird,

[backtrax]

Bee duo, (300mm tamron tele-macro)

[$Money Bags$]

You need to check out a mobile digital photo editor I am working on. I need some feedback and if you have an Android device here is the link.


Perspective

[backtrax]

Snowpix, trout stream, this morning...

[backtrax]

LOL, yeah, I do believe the resolutions will advance rather quickly, though.

[Chrisau]

Was just reading about it. I think I'll wait. 1.2 megapixel and Mac only.

[backtrax]

Have you heard of Lytro cameras? You most likely will be hearing about and seeing this amazing camera that is reffered to as a "Light-field" camera that is designed to capture a large amount of light, and also collects data on the directions of light. This is important to this device....because it allows the post-picture processing to bring any part of a picture into focus after it has been taken.

[backtrax]

Anyone doing underwater-photography here?

[backtrax]

Another bit of color,

leaf close-up

[backtrax]

Color blue,

[backtrax]

Sorting thru pics, looking for some color....need color this time of year!

[Chrisau]

This is where I've been spending a little time lately.

[backtrax]

Pentax K10D (10Mp) w/Tamron prime...AF/SP/Di 90mm 1:1 macro.
....I'd hoped to be able to get greater magnification by ring-coupling the 18-55 kit lens that came with the camera-body and this lens, but the company I'd ordered from sent a 52mm X 58mm female-to-male, instead of the 52mm male/58mm male reverse-coupler-ring they advertised. Just to warn, the company was dinodirect....I requested the RMA for returm, they authorised it....but they never followed up.

[renshen1]

cool shot. what lens/camera are you using?

[backtrax]

Sugar crystals macro.

[backtrax]

Interesting article about using a male-to-male lens coupler to mount a "kit lens" to a macro lens, boosting the magnification from 1:1 to 3:1.
Even if the primary-lens on the camera isn't a macro, magnification of greater than 1:1 could still be achieved.

http://photography-on-the.net/forum/showthread.php?t=807056

[backtrax]

Nice blue-sky, star views at night must be awesome.

[stockenbarrel]

Bodie Ghost Town in Mono County, California




Visit Alternative Energy (AEGY), too:

http://investorshub.advfn.com/boards/board.aspx?board_id=17584

[stockenbarrel]

A Meadow in Sequoia National Park




Have a picnic in the park with Mamas Homemade Penny Plays With A Side of Biscuits:

http://investorshub.advfn.com/boards/board.aspx?board_id=22287

[backtrax]

Results of sensor-cleaning on Pentax K10D, had several spots showing in "blue-sky" pics. Air-blower was failing to remove the spots. Dry-brush used to clean mirror first, and a second dry-brush was used on the CCD/sensor. (Using the same brush to clean sensor and mirror could cause oils/lubricants to be transfered from mirror-mechanism to the sensor.)

Sensor dirty from years of use,

First pass, very lightly..dry-brush, particles migrated to edge,



Second-pass, dry-brush...going to leave it be and take test pics later,

[backtrax]

Picture link to some good photography taken in Wisconsin, some of mine there as well, mostly under "wildlife" catagory

www.capturewisconsin.com

To see mine, search allan king on the site.

[backtrax]

Thanks, just moments ago I was suprised to learn another pic from that series recieved "photo of the day" on another photo-submission forum.

[renshen1]

Beautiful shot!

[backtrax]

Hummingbird in-flight, crisp shot.
Photo taken from a blind with tamron LD/Di AF 70-300mm, zoom to max, on the pentax K10D body...aperture wide-open (4), and contious-shooting selected.
ISO limited to no-more-than 400/auto, and aperture-priority-mode. File-type is jpeg 10 Mp.

[backtrax]

My 3 year-old grandson photo'ed his first-ever portrait, he choose the subject.
pentax K10D, tamron 90mm prime lens,

[backtrax]

Skipper, not sure what type. Very common to our area, tho'.

[backtrax]

Eastern yellow swallowtail butterfly

[backtrax]

Insect eggs, on a squash-leaf. (Insect is Anasa Tristis...common name squash-bug) They are the initiating vector for yellow-vine disease on squash and cucumbers. (Curcurbit)

[backtrax]

Dif angle,

[backtrax]

Macro W.pentax K10D and tamron 1:1 macro/ 90mm SP/AF/Di

[PMS Witch]

This site may be of interest to anyone who has ever had their camera stolen. . .

Camera Finder

Cheers, PW.

P.S. Not all cameras write their serial number into images' EXIF, so test the site to see if it works for yours.

[Chrisau]

Very nice. I can see that I need to get the camera out.

[backtrax]

One more

[backtrax]

I was tracking the head (which is slightly less blurry) as he/she/it, was on the move. Pentax K10 w/AF 70-300mm telephoto
handheld. I have adjusted the brightness of the image, it was moments after daybreak and very overcast.

[Chrisau]

Great pictures. Why is the skunk blurry? LOL

[backtrax]

today




a few days ago,

[backtrax]

Doesn't anyone have photos to share??

[backtrax]

Spring is here, signs of life everywhere...

[backtrax]

Another float Fake...

[backtrax]

Floating flashlight illusion,


Clone and "smudge" tools used. Smudge is helpful in evening-out circular-shapes left by clone tool and for color blending. The idea is to eliminate "patterns" that may draw the eye to an area that has been altered. The bamboo and tape used to support the flashlight has been removed, color texture and shadows cloned in its place.

[backtrax]

You can use many programs to remove scratches from old photos, or remove artifacts from the photos altogether. Using adobe photoshop 2 (That is included on many computers for free) You can use the "clone-stamp" tool to take a micro sample of a portion of the picture...and "stamp" it over a flaw or object you want to remove.
First example has a hand in view, that must be removed..



Then the hand is concealed by copying micro-images of the rug nearby. (And some of the wood edges too.)



finally you may need to clip/clone little bits of things to make the edges look more natural. In the final view, areas of fur with tips visable were added to the edges of the ear/face area.

[backtrax]

Depth-of-field examples, to illustrate focal points.
In the first image the frost-covered needles were the item that was sharp in the autofocus mode.



To experiment, (camera on tripod) switch to manual-focus to penetrate thru the foreground.

[backtrax]

Digital-modification is an extention of control that the photographer/artist has over how the final product will appear.
I don't personally know anyone (alive) that still uses film, and develops their own prints. Many of the adjustments that now can be performed "in-camera" were only possible in the lab....and those decisions were made for you to conform to what the lab considered as acceptable adjustments.
I'd really like to see some digitally-modified pics from other members of the board. Don't be shy. Share some of your Favorite with us.

My Mother at her last visit to see my brothers home in Florida-morning, converted to oil and shading added in Adobe Photoshop.

[backtrax]

I personally like to create individualised gifts on different types of paper and fabrics found in arts and craft outlets.
Having little sketching talent, (I can't sketch a realistict nose, for instance) I may take a photo copy, reduce contrast, increase exposure untill you can barely make out the profiles.
Next printing onto a textured sheet of appropriate size for the printer that you have. I've experimented with all kinds of printers, Canon, HP, Lexmark, Epson and Kodak. They all handle the papers with ease. White, off-white, cream and light-tan papers are going to give best results for color-prints. Light shades of other colors can give great surrealistic-effects for sepia/black and white photos.

Colored-pencil, ink and pastels, printed on textured paper.

[backtrax]

Enhancements to photos that are "lackluster", Via digital modification, IMO, are OK if the aim is not to misrepresent what the original actually was. A sunset shot in Florida over-water turned out well enough to capture the memory, but as it was directly into the sun required manipulation of bright/contrasts to print more like I'd remembered it. For grins, I fiddled a bit with the color tempratures, hues and saturation. Then I printed a light image to a printer-compatable actual-canvas, and used water-color pencils and oil-pastels to emphasize the transitions between light and shadows.
I like the effect, others may not,

[backtrax]

Plaza De St. Marcos, Venice...2 views

[backtrax]

Pic of "Bridge of sighs" I took years ago in 35mm.
Venice, Italy

[Chrisau]

Here's a link to some really great aerial photo's.

http://justpaste.it/3ky

[backtrax]

Have a great Thanksgiving!