Photography has had a truly incredible evolution over the last few years. The breakthroughs achieved in this sector have been truly exceptional and have developed in chains since the elimination of the roll. The advent of digital technology has in fact launched a whole new way of doing photography. This allowed a rapid expansion of this hobby, mainly due to the quality / price ratio of SLR cameras.
The SLRs, in fact, even those of low range, are able to create professional shots, or in any case a good basis for post-production with more or less advanced graphic instruments. And so that any condition (darkness, fog, movement) becomes perfect to make a picture. In particular today we will take care of how to take good photos in low light.
The shutter speed is a value that indicates how long the camera sensor will be exposed to light. This measurement time in seconds and the SLRs express it in fractions of a second. A photo exposed for a very long time causes blurring. Sometimes this phenomenon is exploited by professional photographers to create photos with light trails. It is therefore necessary to set this parameter to a minimum when you want to âfreezeâ the subject, while leaving it very high when you want to give the effect of movement. Setting it to a minimum of course the brightness of the photo will be smaller. It is therefore necessary to always find a right compromise.
Photos that reflect natural landscapes are characterized by the fact that lighting is necessarily natural. The only light that illuminates the scene (or at least the main one) is in fact made up of the sun. Since the photographer has no way to intervene on solar lighting, is managing light? in this case it means waiting for the most opportune moment to take the picture.
Many will know that making a photograph of the paintings is certainly not an easy operation to do and the difficulties arise from various fronts, including the glass that covers the painting when you are about to photograph the picture (perhaps with the flash ): the only thing that stands out well on the image is a huge patch of incorporeal light , while the painting will not even have a shadow. In the following situation , you would move sideways, but the result would certainly not change: in the next steps of this wonderful and practical guide, then, I will explain in detail how you need to photograph thepaintings in an acceptable manner .
In this context we will see how you can take photographs in afocal, that is, photographing directly inside the eyepiece. The latter consists of the lens within which it is observed. The first procedure consists in obtaining a good digital camera and the support to keep it in front of the eyepiece. Then you have to set the camera manually, without flash and with the focus set on standard or macro. The next step is to place the telescope in the place from where you want to observe the sky, making the polar alignment and pointing the Moon. If you have the motor for the axes, it is a good rule to use it. Otherwise the knob can easily go well to move them manually. In this second case, the camera must be set up so that multiple shots are made at the same time. Next, use the eyepiece 25 mm, then focus on the Moon. It is good practice to check, therefore, that the visibility is good and wait about thirty minutes before taking pictures to let the telescope in temperature. As soon as the telescope has entered temperature, it will be possible to start taking pictures or look for subjects on the lunar surface for their photographs.