50 mm lenses are normal for a 35 mm SLR camera, while for a medium format 6x6 camera an 80 mm lens would give you a natural perspective. 6 0 obj For example, sometimes we read through a lens that allows us to ignore the hidden meanings of a text and focus on the enjoyment that reading this text gives us. Full range zoom lenses cover almost all focal length ranges, from wide-angle views all the way to telephoto or even super telephoto views. Despite attempts to improve their permeability by drilling small holes in the lenses (“fenestra-tion”), adding hydrogel to the PMMA, or other modifications, impermeability remains the major shortcoming of rigid PMMA lenses. A prime (“fixed lens”) tends to work for ALL types of photography, specifically street photography, portraits, weddings, landscape, etc. Types of Camera Lenses: Zoom Lenses Zoom lenses extend and retract depending on the distance of your subject, which means the lens allows you to take photos from different angles and distances. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 6 0 R/Group<>/Tabs/S/StructParents 2>> These types of lenses provide excellent quality shots; however, you will need to move closer to your subject if required physically. Lenses for Reading Literature Anytime we read a work of literature, we are able to read that work through a variety of lenses and focus on different details or meanings in that work depending on the “lens” we use. x��[[o�:~���Ǚ��jɒm� i��vq��`�E�n�I�m&���4�~I�bɶ��ؤDQ��T���zh�ٻwo�8��!˷�����������O�i�]�NOx��?�U��Bf�VL�����I�r��,g��ߢTYw=���9=�����ԫ�zS��^��u��_o��j�ѫ'x&V��׼�Ez ��pe�5�wҰe��f;=�2��NR�r��Pүv����.=��0ȳ#�]Kb� The most important part of the camera 3. Single Vision Lenses. The lenses have one prescription throughout the entire lens surface and either converge or diverge light rays to strike the right spot of your retinas and correct vision. �h����k�W/(����W=�6�i�EI��K�*e%9'���軙%i�h��w;��f6��`����Y����x`^#�����e� {�mp�ˬ� �U�>�����o������K�[IN�R���$�:�g���Zi��w����?f��������VQ3ō�fh�Y��)��F������ jX#��A�\�~ |)6�\g�F);�dR�R5]��5X���-V������ݸ�w�ĨU����,��gA���5��~-Ɋ�]��PULJ���J�aD|c�P���ڮI)�����X�T V�hS�*�b���#J�'ɳ���E��pAO�y����U�I�iy�iC� �o��AK^C�Ɨ��am4fv����nj?ZO߮��H�~p�ov�H��l����;�Ùu��p;��Z������T}������ZO�K\�F�!&�Z��o0$>�Éb聦�����9���A lens types, because they are an older product with many small suppliers and little difference among different brands. stream S�C @.��G �-`첗Ʋ�§(;M/��c;�������.2�e – Black art of massaging the merit function • Optimize for – … Lensmaker’s Equation. <>>> yD��ݡ���������"�M�����]����>�+��E��O�M�Շ���O}���q^m7@����>l|��?�t�F��T��O�s��LPv��$F��[7���i%������c�>��B�̲�X�r;�����s#��@�dv F inding the right lens for your camera can vastly improve your images and overall production. R. 1. �H�@i Multifocal lenses can either be bifocal or trifocal. endobj 0G#1Ȁa�BapѸ�\0�1��h8 Unsurprisingly, they also tend to be the least expensive. Read more about prime lenses ! � ��>�@�2Cx�2��Uy{_}����$b����h�� ��.�Z��SMUo�����qġ �$�H��?�]amɁ�+(dӠ��]L�Ђ�n�h#�����v^/�t3΁k�9X#�w�uw?/�x1߃`�6 �� �� endstream endobj 38 0 obj 764 endobj 39 0 obj << /Filter /LZWDecode /Length 38 0 R >> stream 1 0 obj This type of lens can have large apertures, especially compared with a zoom or normal lens. Prime lenses are great if your subject is in a fixed position in a semi-close range. lens types, because they are an older product with many small suppliers and little difference among different brands. ��h���dF`l `2�$F1 �\1� �%C��PH ����4�A���)��PH4�8�D!���`d B��\6�H�h��c;�K���Z�6�碂 �@d4��gS���dM���� 8��cI� 1�'���,f�FJ�R�-��i��Q6�3�\2���#A���>����)� ~;���y��r9�8|^>$�t9̇SKR��`��[��k#yt�>9���RK��g;���c1��x� ���1� �0�CX�:4��cx�7�آ(�C�����4��HZ�o������+��@�"�pn�)�苆1C����ҽ��C��{���$덃ˬ0�{4;1����0�2��D�{P�+��v�G���! %PDF-1.5 – Lens curvature, width, position, type of glass – Some can be fixed, other vary with focal length, focus (e.g. p���e� �C �m-I$ Ѭ`]4M�IH6V ��0pl�\5��G(�fv1`r��Pm���EJ@�n6�a��� ���) �g�� Very precise! 27 0 obj << /Linearized 1 /O 29 /H [ 1042 337 ] /L 44015 /E 12932 /N 6 /T 43357 >> endobj xref 27 32 0000000016 00000 n 0000000987 00000 n 0000001379 00000 n 0000001614 00000 n 0000001710 00000 n 0000001989 00000 n 0000003089 00000 n 0000003209 00000 n 0000004276 00000 n 0000004544 00000 n 0000004565 00000 n 0000005380 00000 n 0000005401 00000 n 0000006241 00000 n 0000006262 00000 n 0000007048 00000 n 0000008154 00000 n 0000008445 00000 n 0000008466 00000 n 0000009274 00000 n 0000009295 00000 n 0000010107 00000 n 0000010225 00000 n 0000010342 00000 n 0000010363 00000 n 0000011191 00000 n 0000011212 00000 n 0000011990 00000 n 0000012011 00000 n 0000012711 00000 n 0000001042 00000 n 0000001358 00000 n trailer << /Size 59 /Info 26 0 R /Root 28 0 R /Prev 43347 /ID[] >> startxref 0 %%EOF 28 0 obj << /Type /Catalog /Pages 25 0 R >> endobj 57 0 obj << /S 140 /Filter /FlateDecode /Length 58 0 R >> stream A��Hv�v�Z���C��!M��瞡4��f4�� �k7��I. <>/F 4/A<>/StructParent 0>> floating elements) – Multiplied by number of lens elements • Energy/merit function – MTF, etc. 2 0 obj Best high quality image. %���� The Lensmaker’s Equation: 12. �Ñ��� �D�@�A������\4じ� Standard lenses can typically have a maximum aperture range from f2.8 to f1.2. endobj Variations of these factors in lenses should determine the type and quality of lens and pictures you get. endobj One of the best things about zoom lenses is that you can stay in place as you focus on faraway objects without being too noticeable. Double- -concave lens Plano- -concave lens Diverging meniscus lens . However, you’ll surely want to know what you’ll be paying for. Pros: Allows for extreme detailed shots (nature shots, wedding details, snowflakes, etc).