Butterfly

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1
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1answer
13 views

How does using a teleconverter affect the aperture of a lens? [duplicate]

I have hear that a teleconverter affects the apperture of a lens. But I don´t know how to calculate it. Is there a formula to calculate how much will a 1.5X or 2X teleconverter affect apperture?
1
vote
1answer
32 views

How to determine if a new lens is a subpar copy?

I have read some posts like the ones below about testing a lens to determine how well it performs optically. What I didn't see was anything on determining whether the lens performs as it should and is ...
1
vote
1answer
27 views

Which filter would I use for daytime lightning long exposure? [duplicate]

I'm new to the photography scene and although I managed to take a reasonable night time lightning strike on long exposure, during the daytime, I can't seem to get it right (too bright) and a friend ...
0
votes
1answer
13 views

is there an adapter for tamron minolta af 28-300mm f/3.5-6.3 LD aspherical macro to use on canon eos 600d dslr or nikon d5200 dslr?

is there an adapter for tamron minolta af 28-300mm f/3.5-6.3 LD aspherical macro to use on canon eos 600d dslr or nikon d5200 dslr? The game on lens was used on a film SLR Minolta camera. I want to ...
8
votes
10answers
2k views

Do photographers see ambiguity in the color of the blue/black (gold/white) dress?

Okay, so, this has taken the Internet by storm today... You've probably seen it and lots of commentary. Apparently, many people see this as gold and white; to me, it's unambiguously blue. There are ...
2
votes
1answer
26 views

What type of lens can I add to my webcam for closeups 5-20cm away?

I have a somewhat unusual need - I've got a webcam with a fixed, plastic lens that's focused on anything >40cm away. I need to be able to focus on things that are 5-20cm away. I'm not worried about ...
1
vote
1answer
36 views

What is a good photograph [duplicate]

This might sound little lame, Anybody please explain(if possible with example) what is a good photograph ? How we can decide a photo which is good ? for an example if you are in a Deciding panel ...
1
vote
2answers
33 views

How do I hide unflattering body features in a low key shot with rim lighting?

Low key full body portraits with rim lighting are common in photos of athletes wanting to show of their body features. Having models, thinking some features of their body features are unflattering, ...
0
votes
1answer
39 views

position of the object within a photography

Is it possible for the standard cameras to take a picture of a certain dimension but the object we focus on must respect the exact distances we want from top, left,bottom and right sides ? I mean, ...
-4
votes
0answers
41 views

Mirror Effect for face shape [on hold]

I would like to make Mirror Effect for a face shape for example i cut the right side of that face shape so how can i make Mirror Effect for it Is there any tools which let me to do that with ...
-1
votes
0answers
45 views

Susan Sontag's “On photography” - Where can I find concise summaries of the 5 articles/essays?

Susan Sontag's Book "On photography" was written in the 1970s. It is actually a collection of five essays. Countless scholars and enthusiasts have cited her (Actually n = 4200 according to a search ...
4
votes
1answer
53 views

Does the brand of the micro SD adapter matter?

For some reason (I'm unaware of what, but I'd love it if you can include this in your answer as a bonus), SD cards are considerably more expensive in my area than micro SD cards. According to this ...
1
vote
1answer
60 views

How can I remove the hair on the sensor from this picture?

There appears to be a hair on the image sensor that shows up in the upper left corner. I tried dodging and tried using the clone heal tool. Any better ideas? update; this is my best work on the ...
1
vote
2answers
27 views

How to select “white point” before calibrating a monitor with Spyder3

My Samsung monitor has the following Color Modes Cool 2 Cool 1 Normal Warm 1 Warm 2 With factory settings, the monitor has a minor red tint; if I switch to Cool 1, it looks normal; whites look ...
0
votes
1answer
22 views

E-mount lenses to A-mount bodies?

Is there such a way to adapt E-mount lenses to A-mount bodies? If not is there a reason this can not be done? If there is such an adapter can you recommend an adapter to me?
0
votes
1answer
66 views

What are the differences between Canon and Tamron 70-200mm f/2.8 zoom lenses?

I will purchase either the Tamron SP 70-200MM F/2.8 DI VC USD or the Canon EF 70-200mm f/2.8L IS II USM. Considering there is around a $700 price difference between these two I am wondering if there ...
1
vote
2answers
57 views

How to take a picture at the same time everyday?

I am currently wanting to design a system that I could leave outside permanently, and have it take a photo(or series) at the same time of the day, for a year, and then compile those into a single ...
0
votes
2answers
26 views

Yongnuo YN565ex flash, what is the SL option for?

If a Yongnuo YN565ex flash can only be used remotely without triggers, as an optical slave,via menu options S1 & S2, what is the SL option for? I had hoped SL was to recieve wireless signals from ...
1
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2answers
76 views

Why does my lens refocus when the f-stop is changed?

I have a prime Sigma f1.4 50mm lens on my Nikon D90 in P mode and focus mode on a set point of the field and notice that when I am using a tripod and change the f-stop that the camera changes the ...
1
vote
1answer
49 views

Aperture like event view in Lightroom 5

I just purchased Lightroom 5, and am making the switch from Aperture, which I've been using for the last two years, and has all of my 40,000+ images from that time frame. While I didn't realize that ...
0
votes
2answers
75 views

any reason not to disassemble old lens for kids experiments?

I have an old manual-focus Vivitar 400mm lens I bought off eBay. Manually focusing is pretty slow & difficult, even with the live view on the Canon 70D, and as far as image quality goes, it seems ...
1
vote
1answer
35 views

Does chromatic aberration always have the colours displaced in the same way or does it depend on the lens?

I'm needing to match some 3d stuff to some 4k video, so a little chromatic aberration wouldn't be out of place. However, due to the way I've learned to do it (scale one of the colour channels), I just ...
0
votes
1answer
60 views

How can I accurately photograph an empty picture frame?

I'm doing an art project that requires me to shoot an object behind an empty wooden frame suspended from the ceiling. I wear glasses and when I look through the viewer it looks straight however in my ...
0
votes
1answer
40 views

newbie just got a d3200 [duplicate]

I'm quite new to photography in general I've mainly in the past tried to get killer camera phone shots, now the missis has just got me a used d3200 for my birthday, it's body only so has no lens I'm ...
0
votes
1answer
61 views

New camera suggestions for shooting small indoor spaces with bad lighting conditions? [on hold]

I Need new camera something midrange professional for shooting rooms in a local guest house, max budget approx £800. What's good for shooting small indoor spaces with bad lighting conditions? I've ...
9
votes
2answers
612 views

Should film cameras be stored with a cocked shutter or not?

When shooting with film cameras with manual film advancement/shutter cocking, is it better to store it for a longer period of time with the shutter cocked or not cocked. Does it not matter? I'm ...
1
vote
0answers
60 views

Recognize dry areas by separating diffuse and specular reflections [on hold]

This is a machine vision/imaging sort of a problem where we wish to detect dry areas on mostly wet surface. In order to reliably do that we'd like to optimize the imaging side of it. At the moment ...
-2
votes
0answers
20 views

how to use lightroom catalog working on two different laptop [duplicate]

I really need a guide on how to use effectively lightroom catalogs if i use two different laptops, and when i uses the catalogs in an external drives. Do i need to make two catalogs for each laptop or ...
3
votes
1answer
56 views

How to match colors on photographs stitched together?

I wish to create a high resolution picture of two paintings, each in three parts for printing in a book, each across two pages that each measure around 12.5"x10". One painting is a triptych of three ...
2
votes
1answer
47 views

Can I take macro photo with a mirrorless camera as easily as with a compact camera (even without a macro lens)?

I wish to change my Canon G15 camera for an M2 or M3 (when available) mirrorless one. With G15 it is rather easy to shoot macro photos — this is included in the features of the camera and lens. Will ...
1
vote
1answer
43 views

How to Mount Pentax K-Mount on Canon

I have an old Pentax 50mm 1:2 lens (from a Pentax Asahi K-1000) and a Vivitar 28mm f2.8 that I am trying to adapt to fit on my Canon Rebel t2i. I purchased two of these adapters but I cannot figure ...
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votes
1answer
53 views

Is it possible to modify a camera by changing cmos sensor?

I am currently looking at using a Basler Ace series camera (part no. acA3800-14um) which comes with the Aptina MT9J003 CMOS sensor. My question is, how easy would it be to change this sensor for ...
0
votes
1answer
48 views

How do I identify the lens mount for this old lens which says “for Canon”?

I'm trying to find the correct lens mount or adapter to use with my canon t3i.
0
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0answers
33 views

How do I deal with a lens stuck on a Nikon D90?

My wife has a Nikon D90. She can't seem to switch lenses. When we push the release button the lens barely moves. Does lock back in to place though.
1
vote
3answers
134 views

What is the “best” photography tripod for taking panorama pictures?

I would like to buy a photography tripod with great stability and sturdiness to gain "perfect" precision as I will be using it to take panoramic pictures to do VR Tours. I need one that reach 150cm ...
1
vote
2answers
243 views

What should I look for in a wide angle lens?

I'm pretty new to photography .. would appreciate if anyone could advise me a little on comparing wide angle lenses. For example, I'm looking at the Canon EF 24mm f/1.4L II USM and Canon EF 14mm ...
2
votes
2answers
54 views

Is the effect of a fisheye lens visible in an optical viewfinder or Live View?

I live in an area without a camera shop nearby, so I can't see for myself. On a DSLR, is the effect of a fisheye lens visible in the optical viewfinder or do I need a fisheye viewfinder for that? Is ...
1
vote
1answer
50 views

How can I convert a timestamp in Lightroom's .lrprev files to an actual date?

I'm trying to recover some missing images en mass from Lightroom's preview data. Each .lrprev file contains a line similar to this: fileTimeStamp = 346514038.2051, I've already extracted all the ...
0
votes
0answers
37 views

How To take a bulb mode shot in dark night

I am making one Film. Where some shots will be taken in bulb mode. I need some suggestion how can I look it better or best of a bulb mode shot in a night. If the shots are like dynamic with some ...
0
votes
1answer
33 views

Memory card is not showing all data [on hold]

I have a Panasonic AG-AC90EN 1080p HD camera. I had recorded many video clips, then removed the memory card from camera and connected the memory card to my PC using SD card reader. The problem is ...
1
vote
1answer
58 views

How fast does a sensor cool down sufficiently after a long exposure?

If I am taking long exposures for star trails how long should I wait between exposures to allow the sensor to cool down?
2
votes
2answers
84 views
+100

migrate from Lightroom 3 to Lightroom 5: publish services

I've been using LR3 for a few years now, and had to split my collection into multiple catalogs (I found that over 10k photos, LR would slow down so much as to be unusable). This is supposed to have ...
0
votes
2answers
64 views

How do mask like this using Photoshop? [on hold]

Wood is a large image of wood, the red is what is shown. I have this on a PSD sent to me and I'd like to know how to do this to be able to add another texture as this would be amazing help!
0
votes
0answers
37 views

Using motorized lense on a motorized Nikon body [duplicate]

Say I'm using a lens with an AF motor on a Nikon body which also have AF motor. Which one will be active? Is there a way to control it? Thanks
1
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1answer
36 views
3
votes
1answer
95 views

What should I expect in maintenance costs after shutter failure for a DSLR?

I know that the shutter could fail on one of my first images, or it could keep going strong hundreds of thousands more, and that a typical Nikon shutter replacement runs anywhere from $250-400 USD. ...
0
votes
1answer
83 views

can you remove a hair on the image sensor in light room?

i took a series of pictures yesterday and discovered that shooting around f/13, f/16, there is what appears to be a hair located on the image sensor and is visible in the pictures where the lens is ...
6
votes
3answers
381 views

Is there a “special look” to images from large sensors that can't be replicated with a smaller one?

A popular statement in the world of photography is that there is a "special look" to images captured with larger sensors/film formats that you simply can't get from smaller sensors. I fail to see that ...
0
votes
1answer
65 views

is there a quick fix to a broken shutter?

I was cleaning my camera sensor with Q-tips because the dust on my sensor couldn't be removed with air. While cleaning it, the camera turned off and the shutter closed. I was startled and take my ...
0
votes
0answers
44 views

New to digital photography - should I buy a D300? [duplicate]

I'm new to digital photography, know basics, and have a chance to buy a new Nikon D300 for $400.00. Don't really want to be limited to an entry level DSLR. Any thoughts? Thank you

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