MODAS, © 1999-2006


ATM Letters


ATM Letters Journal
© 2003-2007 ATM Letters Journal

ATM Letters report you all about telescope making, written from ATM to ATM. It will both arouse your curiosity and answer your questions. Why are there so many different kinds of telescopes? Why does each type have to offer? What makes one telescope better than another? Which are the best? Why? As telescope maker you will be best informed and will be able to design professional your telescopes. Each issue includes a lot of programs, designed to allow you to quickly and easy evaluate the performance of telescope systems, designed to be simple and intuitive to use and will help you become an optical expert and make sense to you. Each issue is packed with all kinds of information on all kinds of telescope-making subjects.

ATMLJ is the premier magazine for people who are serious about telescope making. It's also really good for those who want to learn more about telescopes in general, history of optics, development and futures. ATMLJ was originally developed for amateur astonomers and telescope makers and will remain ever true to that mission.

Since his first publishing of articles about telescopes, telescope making, and history of telescopes, ATMLJ have gained the respect and readership of amateur astronomers from all around the world.

For new subscribers, ATMLJ offer a special, where you can get the back issues with your new subscription for a very reasonable price. Additional telescope design software called MODAS and developed by the editor can be ordered with discount. This is a great way to be introduced to what is about to become your favorite magazine.

keywords: telescope optical design optics optician software freeware source code excel visual basic applications java scripts applets cgi borland turbo pascal delphi kylix c++ builder dos windows linux susse redhat astronomy ray trace raytrace raytracing spot diagram aberration seidel third order spherical coma astigmatism distortion chromatism spherochromatism opd optical path diference encircled ensquared fft psf mtf otf optimization optimize global local merit function damped least square dlsq lsq tolerance layout telescope refractor objective doublet achromatic aplanatic cemented broken airspaced fraunhofer steinheil clark triplet christen glass schott hoya hikari ohara sumita corning gost lzos reflector mirror sphere ellipsoid prolate oblate paraboloid hyperboloid toroid mangin one mirror newtonian dob dobson dobsonian two mirror cassegrain gregorian ritchey-chretien dall-kirkham pressmann-camichel schwarzschild three mirror loveday picht catadioptric camera maksutov schmidt baker wright sigler gregory simak rumak relay wright lurie houghton loveday tct tilted brachyt shiefspiegler yolo off-axis stevick stevick-paul brunn kutter buchroeder herschel focal corrector extender reducer flattener plate lens menisc meniscus barlow ross winn bird brixner eyepices huygenian abbe ramsden kellner erfle plössl ploessl könig koenig ortoscopic amateur astronomer telescope maker atm atm's modas jodas eodas ivan krastev oslo zemax sigma vob code v optix optalix lensview winlens asap synopsis raycad opticad optikwerks winlens winspot optec optica opticalc lensview atmos dboptic opus autoray ados kdp roadrunner aberrator test startest grid terebizh ronchi mosby null inverse wire foucault knife edge millues-lacroix sinnott texerau book article magazine journal letters atmj atmlj sky & telescope skywatch amateurastronomy coelum applied optics josa sterne und weltraum starobserver
glossary: 1/2 1/3 1/4 96% a/d abbe abrasive achromat actual adaptation adu afocal aid air airy algorithm alignment alt-az altaz altazimuth alumina aluminim aluminium aluminizing alumosilicate amateur anastigmatic angle annealing anti-blooming aperture aplanatic apo apochromat apparent approach arc of contact arm array ascension aspheric assembly astigmatism astrophotography autoguider averted axe back barber barlow barrel belt bertele bfl binning bino binocular bioactive bird bit bk7 blast bond boring boron borosilicate brandon brightness brixner brush butt bvc camera cap code capacity carbide cass cassegrain casting catadioptric cbn ccd cell cemented centerless center-over-center centerline cerium cervit™ charget chatter chief chordal chromatic circles classes classic classical cleaning clear clock cmos cmyk coat coated collimation collodion color combine component compound conditioning confusion contrast converter coordinate correction corrector couder crayford criterion criterion cross crown current curvature curvature of dall dark data dawes ddp declination deconvolution deep depending depth dew diagonal dialsight difference diffraction digitaldilworth disk dispersion dissipation distortion dob dobson dobsonian doublet download drag & drop dressing drilling drivedust dusting dynamic ed effect efficiency efl emery encircled energy english ensquared entrance entropy equatorial erfle error exit expansion exposure eye eyepiece f.e.p.a. fast fastar fever fft field of figuring filter finder fine fine finish flat flattener flourite fluoride f-number focal focus focuser fork form foucault frame france free french friabilty full fully function furie fused silica gain galilean galoc garnet gaussian gaviola gem geometrical german ghost glass go-to goto grade gradient grain grains graphical g-ratio gregorian gregory grinder grinding grit guiding guiding heat helical hexapolar histogram hogging honeycomb honing hopping horseshoe houghton huygenian huygens hyperstar id images images imaging immersion incidance indes interference intermediate internal jig joint jones jumbo kalliscopic kellnerkellner kernel kidney-bean koehler koenig könig lanthanum lap lapping lateral lead least length lens limit limited limiting line loading longitudinal low-reflection lpr lrgb lurie lv ma machine machining magnification magnifier magnitude mak making maksutov marginal mask mass masuyama maximum median meniskus meridional metal microfacet micron mirror mittenzwey modified modiulation monocentric monocentric monocular mosaic mosby mot mounting mtf multicoated nagler narrowband newton newtonian night noise nonwoven null number object objective oblique obstruction od off hand off-axis olishing on top one-shot open opera optical optics orthoscopic orthoscopic ota oxide panoptic parabolic paraboloid paraxial paries path pec pedestal periodic photosite piggyback pincushion pinion pitch pixel plane plate plossl plössl plunge polar pole polishing powders power primary prime prism psf pupil pyrex® quantum quarter-wave quartz rack radian ramsden range ransfer ratio rayleigh rayleigh readout real rectilinea reducers reduction reflector reflex refractor refractorholism refractoritis reinforcing relief resolution resolution resolving response reticle rgb right rings ritchey-chretien roc roll room ross rouge rough rtv sagitta sagittal sampling scale scaling schiefspiegler schmidt schott schwarzschild scidmore scope scratch sct secondary seeing self-guiding semi separated setting sharpening sic sic sidereal sight silica silicon silvering singlet size sky sleek sma societies soda-lime spaced speed speers-waler spherical spherochromatism spider spot spread squares star steinheil stevick-paul strehl stroke structure subtract summing super superabrasives surface symmetrical system tangential tct telecompressor telescope telescope nut telextender telrad temperature test testing tex thermal thickness tilted tissue tn tolles tool on top tot total track transfer transformation transmission transparency trepanning triangular tri-color triplet trischiefspigler truss tube ultima ultra ultrascopic unguided unit unsharp vibration view viewer vision vulcanizing washing waterproof wavelength w-center w-edge wet wheel wide wignetting wild wipe w-normal work workshop w-stroke wynne xccumulate yoke yolo zero zerodur® zirconia zirconium zoom
atm: ivan krastev massimo riccardi john dobson mel bartels stephen tonkin jean texereau adrien millies-lacroix martin tritelwitz anton kutter rtmc riverside telescope maker's conference stellafane springfield vermont
bibliography: ernst abbe george biddell airy alhazen robert day allen giovanni battista amici anders jöns angström dominique-francois-jean arago jacques babinet roger bacon henry baker daniel barbaro friedrich johann karl becke max berek jean-baptiste biot alexandre edmond becquerel john billings niels bohr giovanni borelli savile bradbury james bradley william henry bragg tycho brahe david brewster louis de broglie georges de buffon robert wilhelm bunsen girolamo cardano claude chappe pavel alekseyevich cherenkov nicolaus copernicus marie alfred cornu louis-jacques-mande daguerre leonardo da vinci rene descartes john dollond christian doppler george eastman thomas alva edison albert einstein euclid leonhard euler michael faraday pierre de fermat armand fizeau jean-bernard-leon foucault jean-baptiste-joseph fourier benjamin franklin joseph von fraunhofer augustin-jean fresnel dennis gabor galileo galilei james gregory robert grosseteste edmund halley william rowan hamilton edmund hartnack john frederick william herschel william herschel heinrich rudolph hertz james hillier robert hooke christiaan huygens shinya inoue alexander jablonski zacharias janssen michael kasha john kerr johannes kepler gustav robert kirchhoff august köhler edwin herbert land antonie van leeuwenhoek philipp eduard anton lenard johann nathanael lieberkühn hans lippershey joseph jackson lister albertus magnus dmitri maksutov theodore harold maiman marcello malpighi etienne-louis malus etienne-jules marey benjamin martin james clerk maxwell walter c. mccrone albert michelson robert andrews millikan marvin lee minsky erwin müller isaac newton joseph nicephore niepce paul gottlieb nipkow friedrich adolf nobert georges nomarski max planck maksymilian pluta johan sebastiaan ploem ignazio porro hugh powell claudius ptolemy john thomas quekett chandrasekhar venkata raman jesse ramsden lord rayleigh johann wilhelm ritter ole christensen roemer jean-baptiste rome de l'isle william parsons rosse warren de la rue ernst ruska ernest rutherford angelo sala bernhard schmid otto schott erwin schrödinger henri hureau de senarmont willebrord snell george gabriel stokes jan jacbz swammerdam joseph swan william fox talbot samuel tolansky john tyndall gregorio weber charles wheatstone witelo of silesia william hyde wollaston joseph janvier woodward thomas young carl zeiss frits zernike richard adolph zsigmondy nicolas zucchi
software, freeware: abcd aberrator ados apart apex apilux 0++ asap atmos atmosfringe beam ii iii iv bpm catch code v cyber ray dboptic decad diffract durango enterprise essential macleod film wizard filmstar fred freebmp fresnel fringe gaussopt_ik glad gsolver hohner optic kdp laserwerks lasscad lensforge lensview lightmachinery lightpipes lighttools looking glass lumerical madmax modas multilayer odyssey olive olympios optalix optec optenso opti optica opticad optical base optics lab optics one optikos optikwerks optilayer optis-works optiwave opus oslo paraxia vp pc grate photonics photopia plop radiant raytrace reflectorcad ronchi scatlab scisoft snell solexis solstis speos synopsis tfcalc trace trace tracepro vob winlase winlens zebase zemax
periodicals: photonics spectra design news europhotonics fiber optics online laser focus world lasers and optronics lightwave photonics online photonics spectra oe reports oe magazine sci.optics osa apoma aspe nes/osa spie dgao eos nist bipm bsi din iso ansi cie corm iesna oeosc s & t sky & telescopes sky and telescope sky to night astronomy atmlj amateur astronomy atmlj atm letters journal
manufacturer: astro-physics celestron meade carl zeiss d & g galaxy intes losmandy nikon nova obsession orion pegasus pentax quantum questar starmaster starsplitter takahashi tasco tele vue tinsley unitron vernonscope vixen zeiss edmund ccientific bentec services ltd. doe-cad almaz optics cargille cerac chinese glasses cradley-crystals yrystran cvd materials glass bank gradient lens grinext grintech hikari hoya ioffe kruschwitz lightpath maketech molecular nist nsg ohara pilkington schott sopra spi supplies sumita
sundials: sundi dial sundial cadran astrolabe software freeware applet download design plan calculate calculation gnomon sun solar sunrise sunset moon phase coordinates cartesian co-ordinate system distance au position center celestial principal plane meridian parallel equator altitude azimuth zenith declination right ascension mean true geometric apparent anomaly eccentricity obliquity equator pole ecliptic parallax nutation vector radius orbit astronomical geographical geocentric orthographic horizon horizontal vertical declining inclining cylindrical garden stone brass paper equatorial polar west east north south calendar almanac clock angle radian arc grade degree arc-minutes arc-seconds pi hour minute second date julian gregorian easter day latitude longitude equation time zone sideral universal ephemeris greenwich term armillary analemma analemmatic phenomena solstice equinox shadows zonwvlak book picture amateur maker builder designer associaation meeus daffet smith sundi ivan krastev sonnenuhr babylonische italische sonne jahr mez woz zeit wahre ortszeit mitteleuropäische mittagslinie zeitzone analemma-kurve bifilare deklination siderale zeit äquatorialsonnenuhr analemmatische skaphe armillarsphären deklinationslinien gnomonik