• April 29, 2015

Megapixels and Printing Paper Sizes Table

If you are a lover of printed photography or paper photography, you will probably be interested in having a photographic camera with a lot of megapixels in it. For starters, the more megapixels, the better quality the picture will have.

But there are a few exceptions. Besides the number of megapixels, other factors that intervene can improve or worsen the quality of our picture (I will tell you more about this some other time).

Some of you will remember about an article I posted titled “4 big camera manufacturer deceptions”. In this article I’d tell you that sure megapixels were important when picking a camera, but you should not give it too much importance. While it is true that a decent amount of megapixels is needed in order to print a good quality photo, we should not look for high megapixel cameras. And it’s that people are usually swayed away by numbers, without even analyzing, without knowing what they want.

To settle this question once and for all, I have prepared a small table (lately I’m all about tables) by which you’ll be able to know how many megapixels you really need if you want to print your pictures in paper.

This graphic is based in a 300dpi quality picture. If you don’t know what this number is, worry not, as it is just a photo quality indicator. Normally, a 200dpi picture should have a decent quality, but here I present to you a table based in a 300dpi quality, or in other words, EXCELENT quality.

Megapixel and Print sizes Table:

Print Size (cm))
Print Size (inches)
2 MP 13.2 x 10.2 cm 5.2″ x 4″
3 MP 17.3 x 13 cm 6.82″ x 5.12″
4 MP 20.9 x 13.8 cm 8.21″ x 5.44″
6 MP 25.4 x 16.9 cm 10.02″ x 6.67″
8 MP 27.6 x 20.7 cm 10.88″ x 8.16″
10 MP 32.8 x 21.9 cm 12.91″ x 8.64″
12 MP 36.3 x 23.7 cm 14.30″ x 9.34″
16 MP 41.7 x 27.6 cm 16.40″ x 10.88″
20 MP 46.5 x 31 cm 18.3″ x 12.2″
24 MP 50.9 x 34 cm 20.02″ x 13.4″
30 MP 56.9 x 37.8 cm 22.40″ x 14.9″
36 MP 62 x 41.4 cm 24.40″ x 16.3″
44 MP 68.6 x 45.7 cm 27″ x 18″

So now you see friends that a 10 megapixel camera should be able to capture pictures that we can print in an A4 folio, ensuring the maximum quality.

Do you understand now why I always insist that it’s ok to care about the megapixels, but you should not obsess with it either?

No more excuses. It doesn’t matter which camera you have, as long as it has 10 megapixels, 8 or 6. It’s not all about megapixels for a good photograph. You will get the good photograph.

  • April 28, 2015

Understand the SLR camera’s specifications

I publish SLR camera comparisons regularly, but it is possible that every time I post one I might be feeling intimidated by the terminology and the specifications of the photographic jargon. What does it mean if a camera has or doesn’t have a focus motor? And does the screen resolution affect the quality of the pictures? And what’s that about pictures per second?

Nikon D7200

In today’s article I will be clearing all those doubts. Bookmark it for a future reference because it sure will be helpful for you more than once.


  • January 14, 2015

What are the Optical Low Pass Filter (AA filters) and how do they affect your photographs?

If you are up to date with the photographing world, the release of the several high end cameras that lack the AA filter or Optical lower pass filter might have caught your eye. I am taking about cameras such as the Nikon D800E or the Pentax K-5 IIs, which are special versions of the D800 and the K-5 II respectively, but also cameras like the Nikon D7100, and the lastest Nikon D5500, which were released without the filter.

Optical Low Pass Filter

You are probably wondering why these camera versions are more expensive even though they lack of something the normal version cameras have. In this post I will try to explain what this filter consists of, what is it that it normally does and what are its advantages and disadvantages of not having it in our cameras.


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  • December 20, 2014

Should white balance setups be totally ignored in the taking of RAW photographs?

I was asked by some friends that whether the white balance setups can be totally neglected when taking RAW photos. I believe this may also be one of the puzzles by many others during their process of gradual elevation.

Undauntedly, white balance is of great importance to a good photo, because white balance determines wither the colors are correct, and it also decided the style of a photo’s tone. Nevertheless, I hold that white balance is a lower stream operation of RAW — RAW upper stream and RAW lower stream are the extremely important concepts on digital photography, which is especially true of those taking photos in the format of RAW; simply put, if what you take is JPEG or TIFF, then, in the late processing, it would be impossible to alter the white balance. You can conduct modifications on the white balance through software; however, fundamentally, this is a result obtained by altering the hue, instead of truly changing the photo’s white balance. This is because white balance is the information embedded inside JPEG. The 5200K at the time of your photo-taking will remain 5200K, with no way of changing it during the late stage.

However, if you take a RAW, the circumstance will be different. Almost all the RAW processing software allows you to alter the RAW photo’s white balance. During photo-taking, the color temperature was 5200K, and you can freely elevate it to 6500K during the late stage or reduce it to 3200K. Lightroom’s white balance commands are different on the displays of JPEG and RAW. The former displays a value with 0 as the center, while the latter displays the photo’s actual color temperature.


  • December 11, 2014

White Balance: A basic tip but also unknown to many

White balance is a very useful setting that shows the correct color reproduction, but we commonly use the white balance set in automatic whatever the situation, which many times it gives us an unexpected result or even unpleasant for some people.

The white balance must adapt itself to the situation that we want to handle. Here are 2 photographs; in fact they are the same, only that in one of them we have a different white balance to the other one.

Basically we are helping the camera understand what type of lighting is being received in the lens and then in the sensor to capture the image, we will decide if we let the camera detect the lighting (Automatic) or if we have artificial lighting such as FLASH or Daylight, Cloudy, Shade, Tungsten, Fluorescent, and Custom.


  • November 22, 2014

How to fix the problem of dark visor during manual exposure

Despite the great benefits of the EVF for the latest X Series cameras, the fujistas who have used an optical SLR viewfinder for many years often go through a difficult transition. A frustration expressed over and over again in our forum is the inability to see anything in the viewfinder or on the LCD in low light scenarios, and having to use the manual exposure mode. In particular, this situation occurs especially in the contexts of studio photography and use of flashes, and night photography and use of the camera in Bulb mode.

Keep in mind that, by default, the viewfinder and the LCD screen show you a preview of the photo exposed to the values that we have indicated to trigger. For flash photography, the preview will be completely dark because it will be correctly exposed right up to the time of the shooting and the activation of the flash of light. It’s those moments of ignorance and uncertainty in which you’d like an optical viewfinder, because with the SLR you see at least as perceived by the human eye without underexposure in between.


  • August 3, 2014

How to show your photos physically and digitally

Today we frequently have the opportunity to take photos often that we practically dedicate ourselves to accumulate images. How many photos have you printed in the last year? And how many times do you re-visit your archive to remember precious moments? Take your photos out of your memory box and find how to show your photos in both a digital and physical holder.

Digital Support

The most important thing for your whether they are physical or digital format is that they are good: choose only those photos that manage to express what you want to say and keep the quantity low so you don’t get bored.

Digital Frame

Do you have a bunch of photos that you love but don’t want to print? Do you get bored fast looking at the same kind of images and would like to change frequently? To look at your photos without printing them, you make yourself a digital frame: At first the expenditure is great but over a long time you would save on printing costs of millions of photos. You can also use it to place a static photo of change it when you want to.


  • July 22, 2014

Why can’t flash be used in museums?

Who has not thought that it is a stupid rule that you’re not allowed to use flash in museums? I’ve seen this in several museums and always wondered what the reason was for this ban to exist. I would have understood if they banned all photography in general, due to copyright issues or a desire that no images taken within it, encouraging people to visit the museum rather than visit them virtually. While some do it, the prohibition of using flash is always present and there has never seemed to have been a proven scientific basis that this type of shot with light has any effect on the exhibits. The rumor was that it was just a baseless rule that came from long ago, and was passed from hand to hand until present day.

But apparently this is true and the flash really does have an effect on the paintings and museum exhibitions. Someone had the same doubt as me and asked this question on Skeptics.SE where the replies were very revealing.


  • July 10, 2014

How to do a search with you Smartphone Camera

The camera of your smartphone is useful for more things than to take pictures of your food, your cat, or to take selfies in the mirror. Discover how to use it to find anything.

Smartphone Camera

There is a phrase that I never tire of repeating, and that is the more intelligent electronic devices become, we become dumber. Not that we’re becoming stupid, but you cannot deny that our technological dependence is sometimes very large and have stopped doing many things ourselves, so that a machine can do them in our place, like remembering phone numbers, birthdays and directions.


  • July 3, 2014

35mm or 50mm?

The question of 35 mm or 50 mm will probably ring a bell to someone who has planned to buy a fixed lens before. When you start to look into the possibility spectrum offered by the brand of our camera (doesn’t matter if it is Canon, Nikon etc … most of them have it) we will find these two focals that, by the way, have generally good criticism. There are many more like the 28 mm, 20 mm, 85 mm,… but the most popular are the ones mentioned in this post so we will take them as reference.


Even if some back away when they buy a fixed lens because of the fact that instead of seeing the zoom ring move, you have to move it, the quality of a fixed lens normally exceeds that of the variable focals and this is the reason many decide to take the jump.