technical articles

sensor Did you know that the sensor size affects not only the angle of view of the connected lens but also the depth of field at a set aperture? How exactly do these correlations work and what exactly is the difference between an APS-C sensor and a full-frame sensor? Is it really worth investing in a larger sensor? Learn more about sensor sizes and their influence on the final image.
how many lenses? One of the great advantages of a system camera is the use of interchangeable lenses. The camera can be equipped with a suitable lens depending on the intended use. But how many lenses do you really need and where lies the disadvantage of a large collection of different lenses. This article wants to simplify the photographer's life a little and to consider one of the basic values of photography "less is more" when selecting lenses. An article that could have a positive effect on the weight of your equipment!
polar lights 3 The subject of aurora borealis is always on my mind and with every journey to the far north and the sighting of new aurora borealis I am inspired again and again and see the diverse possibilities of aurora photography. Everything happens so fast, but the exposure has to be long enough and you can't concentrate 100% on taking pictures because of all the amazement; you should be better prepared; this article will help you!
inkjet printing The inkjet technique has given us a great printing technique where you can achieve amazing results. But the possible settings are very varied and you will often be overwhelmed by which parameters you should set and how exactly. Print with 240dpi or with 300? Does that really make a difference? Or rather with the setting "high quality". And what about the color management; printer driver or Photshop? This article gives information and clear recommendations so that you don't have to test everything yourself.
inkjet repair
Epson 3800/3880 maintenance Even the best inkjet printer is not free from wear and tear. If black ink stains appear on the printouts and ruin them, maintenance is required. This article describes exactly how this works and what causes the ink stains.
foto bags Of course it is great to have many different lenses. But if you leave the "right" lens at home and don't have it with you, you won't get much out of the extensive equipment. So everything has to be in one bag. But which bag is suitable? How do you access the required equipment quickly and easily? It is not always possible to put the bag on the floor. And which bag can be carried over longer distances? After many bags and many partly unsuccessful attempts on the way to the ideal bag I can share a lot of experience. Maybe this article will help you to find the ideal storage for your equipment faster!
travel tripod
travel tripod I have already described in an other article which properties an ideal tripod should have and how to dimension it. But sometimes less is more and then you would rather have something light with you than nothing at all. A light and handy tripod can also be stuffed into your pocket rather than the ultimate super tripod which is not quite as compact.
lenscoding The M system has been in use for several years and there is only one connection between lens and camera for focusing the lens. There is no electronic connection and so the camera can't read the aperture and write it into the EXIF file or recognize the connected lens; can it? Thanks to a sensor in the new M-models, the lens can be read out via a black and white code on the lens. But older lenses do not have that code. You can send the lens to Leica and have it "coded" expensively or you can try it yourself: This article describes how this works.
aperture The aperture, along with shutter speed and sensitivity, is the most important setting parameter for exposure. Most people know that a small f-stop numbers also means less depth of field and vice versa, but how exactly do you define depth of field? What is a circle of confusion and what is the effect of a high number of aperture lamels? And what does Bokeh mean? This article describes all this and much more!
rangefinder cameras The viewfinder camera (or more precisely the rangefinder camera) is or was the traditional camera of the photojournalist. Today it is mainly used in street photography. Only a few brands still offer viewfinder cameras, but thanks to the Leica M and Fuji XPRO series, the system is still very much alive. But what are the advantages of such a camera and why is it still offered in addition to the digital SLR cameras (DSLR) and intechangeable lens cameras (ILC)? This article sheds some light on the secrets of the viewfinder camera.
no startrails To capture stars sharply on the sensor without the longer exposure time leaving star tracks is not so difficult, if you observe a few simple laws.
M8 inrared
M8 infrared The Leica M8 camera has a blocking filter in front of the sensor that allows some infrared light to pass through. This "construction error" can be exploited for creative infrared photography. And thanks to the viewfinder camera, you always have an unfiltered view of the object. This article describes how well this works.
geotagging Geotagging: what is it good for and how is it carried out?
farbe des lichts
colour of light The colour of the light changes over the course of the day; but why and what is behind it? A little physical background brings light into the shade, or color into the light.
timelapse Create a time-lapse and assemble the photos into a movie.
folio folder The photo folder (portfolio folder) is a beautiful way to present your photos; digital detox pure! But the production of such a portfolio can be expensive if you don't know which way to go and how to produce such a portfolio at all.
hdr photography With the HDR technology one can handle an enormous dynamic range in the scene. But not all objects are suitable for it. Once you have found such an object, the results can be excellent. And as always, there are a few technical challenges to overcome.
tripod Choosing the right tripod is not easy. Many questions have to be answered; how big, which material, which tripod head, how many leg segments? And then there is a lot of extra equipment. And finally the question arises: when exactly should I use a tripod? Here you will find answers to all these questions and will find the right tripod for you faster.
5D Mark II The 5DMark2 in comparison to the EOS 20D.
external power supply With an external power supply one can create long time lapse series or do astrophotography. You don't necessarily have to buy an expensive original adapter (if it is available at all) but you can build it yourself and expand the system flexibly according to your needs.
photography in the cold According to the data sheet, most cameras are built for a temperature range from 0 to 40 degrees Celsius. But of course you can also use the camera outside this "fair weather range", if you observe a few rules.
wildlife photography It is very enriching to observe animals in the wild. Often you want to take some pictures of the wildlife. But which equipment do you need and how to proceed best? A few thoughts on animal photography.
polar lights 2 How often can you actually see polar lights and where is it best to observe them? What shapes and colours are there and how do you deal with artificial light?
polar lights Polar first steps: This article explains the required equipment and how to expose best.
panorama photography Thanks to digital technology, panorama photography can also be used by photographers who do not have a special panorama camera. However, not all situations can be photographed and some criteria must also be observed for static objects so that the subsequent image assembly is easier.

--- the publisher and author of this site is Bernd Margotte ---