Shadowy Daisy

Shadowy Daisy
by damned-truths

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2
votes
2answers
222 views

How can I achieve extreme macro?

Following up from my previous question I would like some advice on getting closer results. Below I have posted an unedited photo of a dead fly I found. What equipment do I need to get his face ...
1
vote
2answers
533 views

Can a circular polarizer filter cause noisy images?

I am using a Canon 450D with 17-85mm Canon lens. I noticed that the image is very noisy when I use my CPL filter. Is my filter bad quality or is this normal? I notice this especially when I take RAW ...
3
votes
2answers
347 views

Is it more cost-effective to build a home studio piecemeal or buy a lighting kit?

I am transforming a basement room into a photo studio. I will be doing people portraits and using backdrops. I plan on trying many different shots... from high key to low light bodyscapes. From what ...
1
vote
1answer
1k views

Size of the entrance pupil vs size of the aperture

I understand that the entrance pupil is the image of the aperture as seen from the front of the lens. However, is the size of the entrance pupil the same as the size of the effective aperture? In ...
1
vote
0answers
55 views

Determine the size of an object from an aeriel photo [duplicate]

Given: I shoot from 1,000 feet ASL I used Canon 1000D with 500mm telephoto lens Question: How can I measure or find the size of an object that i shoot using the following data? Can you show me the ...
7
votes
2answers
682 views

Why don't mainstream sensors use CYM filters instead of RGB?

From what I understand most digital cameras have a sensor where each pixel-sensor has three sub-sensors, each one with an R,G and B filter. RGB is obviously the more fundamental colour model since it ...
6
votes
2answers
234 views

Why does the picture on my camera's rear LCD screen look fine right when I take the shutter, but then change?

I have a point and shoot camera that has a very nice zoom, and has the usual image stabilization etc. When I press the button to take a picture at, say, a concert (low light, moving people, pretty ...
0
votes
1answer
115 views

Raw images usage and technical explanation? [duplicate]

How to take RAW images in Canon 600D ? What is the use of making RAW than jpg ? Does the quality differs or the we can edit easily ?
0
votes
1answer
198 views

How to assign the function button for Bracketing in Nikon D7000

For my Nikon D7000, instead fumbling each time for exposure bracketing setting, is there a way to assign this to the function button in front of the camera thereby I can press this button and shutter ...
3
votes
3answers
2k views

Advantages of single vs multiple Aperture libraries?

I have nearly 15 years of digital photos scattered about that come close to 200GB. I bought Aperture last year, but have only now decided to tackle consolidating all these photos. I think I know how ...
4
votes
2answers
2k views

How does a sensor cause vignetting?

Vignetting is usually assigned to lens characteristics, or caused by light-blocking objects in front of a lens, like lens-hood or a filter. Is there vignetting (or vignetting-like effect) caused by ...
1
vote
2answers
692 views

nikon dslr d3100 ..certain lense wont focus and others will

My camera won't focus after a certain point and there is a kind of low screechy noise when it tries to focus. dont understand why it happens with my 55-200 and it doesnt happen with my 18-55 at all
2
votes
2answers
971 views

Why does oil leak from the aperture ring of old lenses?

I'm assuming that the oil was there initially to lubricate the aperture blades, but why does it leak out?
4
votes
2answers
779 views

Will the Rokinon 8mm f3.5 Fisheye work with a Canon camera?

I want to buy the Rokinon 8mm f3.5 Fisheye lens, but I saw in one review that is not recognisable for Canon because there is no a chip which is necessary. What is that exactly? Will I have problems ...
0
votes
0answers
55 views

nikon 5100 not shooting as if power was turned off

My nikon 5100 stops shooting in the middle of a series of shots. Using the standard 18-55 lens. I have turned it on and off this sometimes resets it, I have pulled the battery and SD card, these ...
1
vote
2answers
3k views

Canon Sharp Zoom Lens for Fashion Photography

I am looking to buy a Canon L lens, preferably a zoom to cover various ranges and focal points. I had a look on the new Canon 24-70f4L and it looks fantastically sharp. However, someone mentioned on ...
1
vote
3answers
398 views

Can I estimate the light gathering power of a lens by measuring size of entrance pupil?

Supposing I have an unknown lens of which I don't know f/# and focal length. I want to estimate the total amount of light that my lens can collect which, I believe, is given by the solid angle that my ...
-2
votes
1answer
542 views

flash for a beginner? [duplicate]

I am a photography buff. I got my first DSLR camera 5 months ago ...and I need a flash to improve night-portraits and indoor shots! the problem is that I don't have enough information about external ...
1
vote
4answers
387 views

Have DSLR sensors made improvements since the transition to CMOS?

I know that CMOS sensors appeared in the beginning of 90s, and evolved up to 2000s. I'm mainly talking about high ISO photos quality. For example, Canon 5D mark 3 has better results in high ISO tests ...
-1
votes
1answer
308 views

Is Magic lantern compatible with Canon Kiss X5 (600D)

I purchased a new Canon camera last time in Thailand, this I was told really is an EOS 600D camera, but the Japanese version (Kiss X5) which I got for a pretty nice price, Now I wonder if this camera ...
0
votes
0answers
51 views

my nikon not showing in autofocus

my niece who lives in another state has the D5000, as do I. Her camera has stopped auto-focusing. I've tried troubleshooting over the phone but the focusing problem continues. Here are the settings ...
-5
votes
2answers
135 views

Canon 50mm f/1.8 [duplicate]

Is it worth buying a Canon 50mm f/1.8? What is the lens good at? I read a review that it is good at doing Bokeh. I tried using my Canon 18-200mm to do a Bokeh effect, but it wasn't that good.
12
votes
5answers
3k views

How do I ensure good color reproduction when photographing paintings with a mid-level DSLR?

I'm a casual photographer with an APS-C camera (Pentax K-5) and a set of proper lenses. Someone asked me if I could photograph his oil paintings for a catalog. It's a low priority job to him, he just ...
5
votes
2answers
534 views

How similar is in-camera JPEG processing to own brand RAW conversion?

We know that the JPEG produced by in-camera RAW conversion is very close to that produced by using the RAW converter provided by the camera manufacturer, but how close is it in detail? I'm interested ...
1
vote
2answers
11k views

What is a Canon Digisuper lens and why is it $200,000+? [closed]

What is this... thing?! And what's so special about it? http://www.bhphotovideo.com/c/product/887615-REG/Canon_xj100x9_3b_af_lo_XJ100X9_3B_Digital_Zoom_Lens.html
0
votes
1answer
251 views

Is it worth buying a SLR? [duplicate]

Is it worth buying a film camera? I have a DSLR but I also want to have an experience in using a SLR. I want a fully manual camera. DSLR cameras has manual mode but I think it's different from a SLR. ...
1
vote
8answers
4k views

Is an aperture range of 3.5-5.6 shallow enough to provide great bokeh on a cropped sensor?

I have been primarily shooting with a Canon 18-135 f/3.5-5.6 for several years now, and I am not completely satisfied with it. The problems I have are: A bit too wide on the low end A bit too short ...
1
vote
2answers
3k views

Using old, manual focus lenses with a new Pentax DSLR

I have an old Pentax ME SUPER with three lenses, all of which have manual focus rings and no autofocus motors. Do new Pentax DSLRs have built-in focus motors that can deal with old lenses? FYI, ...
2
votes
3answers
632 views

Any ideas on how to capture time?

I have a photography project based around 'time'. I'm struggling to find ideas on how to capture this with the specific detail that has to be involved. My image has to have memorabilia within the ...
1
vote
2answers
10k views

Do Canon 430EXII speedlite flash units have an optical slave function?

Before I buy , i want to make sure: will a 430exII fire by "seeing" the light burst from other flash sources? and if not, what canon speedlite can do this?
1
vote
0answers
39 views

Panasonic FZ200 SD Card - does Class 10 UHS-I improve performance in the camera over a standard Class 10? [duplicate]

I was wondering if anyone has tried multiple cards in the FZ200 to find out just how fast it needs to be to make the camera as fast as possible? I bought a kit that looks like it includes a generic ...
3
votes
2answers
4k views

canon speedlite manual :what is stroboscopic flash?

In page #37 of the sppedlite 430exII manual, it says : Features available with type B cameras: Manual flash, stroboscopic flash with wireless flash" What the book means by "stroboscopic flash" Isn't ...
0
votes
0answers
106 views

Lumix DMC-TZ8 - SDHC card empty

I am using an integral ultimapro sdhc 8gb class 10 in a Panasonic Lumix DMC-TZ8 and when the card is put in a PC, the pictures are missing. This has happened on two memory cards and the first card ...
0
votes
1answer
403 views

How can we calculate differences in exposure times with ND filters?

This should be rather easy for these of you who own and use 0.45 ND or 0.75 ND filters so here we go. Just for fun I'm writing Android app that calculates exposure time when certain filter is applied. ...
0
votes
2answers
8k views

Manual Mode : Dark picture even in broad daylight [duplicate]

I am a new DSLR user. Whenever I click a picture using Manual mode the picture is pitch black. You cannot see anything. Which setting should I change? How can I overcome this problem? It's only like ...
1
vote
5answers
2k views

Can I use Olympus OM lenses on a Pentax DSLR?

I have some Olypus lenses that were used with my OM20 camera that I would like to use on my Pentax K-r camera. Is this possible, and what would I need to do it?
0
votes
2answers
296 views

Over saturation in RAW files

I have a canon 7D and shot some images in RAW which came out on the camera and JPEG as I wanted them to. When I open the RAW file in Photoshop CC the images lose definition and become totally over ...
2
votes
1answer
325 views

F-mount extension tubes suddenly stop attaching to Nikon d5100

I just got a new Nikon d5100. I attached some extension tubes, took some pictures, took off the extensions tubes, took some more pictures. When I tried to re-attach the extension tubes they would not "...
0
votes
2answers
254 views

Zoom Lens suggestion for hobbyist photographer

I would like to purchase a DSLR. Please note that this is my first DSLR camera and I am a poor graduate student so I am foregoing almost 6 months of warm dinner to purchase this. I have decided to ...
6
votes
1answer
712 views

What is the camera doing when “processing” a long exposure photo

I'm looking for a technical answer, ideally from an engineer that actually works on the cameras or someone who's reverse engineered the firmware. I'm a graphics programmer so don't hold back the tech. ...
4
votes
7answers
438 views

How do I expand a low dynamic range scene, in the analog domain, when shooting a photo?

I was on an observation deck taking pictures of a city, it's an overcast day and the air is hazy. The pictures come out and looking at the histogram everything is bunched in the center. The image ...
0
votes
1answer
523 views

color errors in dark areas - canon 700d/t5i

yesterday I bought an Canon EOS 700D with kit lens 18-55 STM. On my test images I encountered green "clouds" on dark areas. Is there a name for this kind of error and does it originate from the lens ...
0
votes
3answers
599 views

Compact camera for every-day-carry

I'm looking for a every-day-carry kind of camera, that would easily fit into the pocket of my tactical pants. Right now I'm using the camera on my phone (iPhone 4), but - honestly - it lacks just 3 ...
3
votes
1answer
240 views

Lens f-number and speed on adapted lenses

A lens has a focal length, and its entrance pupil has a diameter. The ratio of these is an f-number. The size of the entrance pupil is limited by the size of the front element, and we describe lenses ...
2
votes
3answers
8k views

Can I use a Pentax lens on a Canon body?

I have a SMC Pentax-M 50mm 1:2 prime lens and a Pentax MC auto 28mm 1:2.8 from my dad. I have been looking at two film cameras lately, the Pentax MG and the Canon AE-1. If I buy the Pentax MG I know I ...
3
votes
2answers
329 views

Is there any system to control a non-TTL speedlight from a wireless controller on the camera?

I'm looking for a radio trigger system to control my manual speed lights from the camera. To be clear, I am not looking for a TTL system. I want to be able to adjust the zoom and power, preferably ...
1
vote
1answer
113 views

Can a curve be added in GIMP as a layer?

The colours in a GIMP image can be modified by using the curve tool. When I apply the curve tool, the original values are forgotten. Is is possible to apply the curve tool as a layer filter so that ...
1
vote
2answers
764 views

What is the math behind white-balance, and how to choose it?

Given a bad balanced RGB image (in terms of white balance), how can I choose the proper color balance that needs to be applyed (as a RGB vector where 128,128,128 is the neutral)? Same question for a ...
-1
votes
2answers
592 views

Can photos printed at home be acceptable for UK passport applications? [closed]

The UK passport photo guidelines (PDF) state: Photographs printed at home are unlikely to be of a sufficient quality. This statement looks very much like it's aimed at a general, uninformed ...
6
votes
1answer
518 views

What are the heaviest parts of modern DSLR bodies?

60D = 755g 600D = 560g Both are built on an aluminium chassis. The only difference I can think of is a pentaprism. Is it really that heavy? Almost + 200g What are the other heavy parts?

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