Pu\u0161koh\u013ead pln\u00ed dve \u00falohy naraz: zv\u00e4\u010d\u0161uje obraz cie\u013ea a prekr\u00fdva ho z\u00e1mernou osnovou (kr\u00ed\u017eom). V\u00fdber pu\u0161koh\u013eadu z\u00e1vis\u00ed od pochopenia nieko\u013ek\u00fdch pojmov \u2014 zv\u00e4\u010d\u0161enie, ohniskov\u00e1 rovina, z\u00e1mern\u00e1 osnova, o\u010dn\u00fd reli\u00e9f a paralaxa \u2014 a ich prisp\u00f4sobenia vzdialenostiam, na ktor\u00e9 re\u00e1lne strie\u013eate. Tento sprievodca vysvet\u013euje ka\u017ed\u00fd z nich zrozumite\u013en\u00fdm jazykom.<\/p>\n
Ka\u017ed\u00fd pu\u0161koh\u013ead je op\u00edsan\u00fd svoj\u00edm zv\u00e4\u010d\u0161en\u00edm a priemerom prednej, teda objekt\u00edvovej \u0161o\u0161ovky. Pu\u0161koh\u013ead s pevn\u00fdm zv\u00e4\u010d\u0161en\u00edm<\/strong> m\u00e1 len jedno zv\u00e4\u010d\u0161enie, ktor\u00e9 sa zapisuje ako hodnota zv\u00e4\u010d\u0161enia nasledovan\u00e1 ve\u013ekos\u0165ou objekt\u00edvu \u2014 napr\u00edklad 2.5×34 znamen\u00e1 2,5-n\u00e1sobn\u00e9 zv\u00e4\u010d\u0161enie s 34 mm objekt\u00edvom. Pu\u0161koh\u013ead s variabiln\u00fdm zv\u00e4\u010d\u0161en\u00edm<\/strong> pokr\u00fdva ur\u010dit\u00fd rozsah, napr\u00edklad 3-9×40: 3-n\u00e1sobn\u00e9 na spodnej hranici, 9-n\u00e1sobn\u00e9 na hornej hranici a 40 mm objekt\u00edv. Ke\u010f na krabici \u010d\u00edtate \u201e1-6×24\u201c, pom\u00e1ha prelo\u017ei\u0165 si to nahlas \u2014 zv\u00e4\u010d\u0161enie 1x a\u017e 6x, 24 mm objekt\u00edv \u2014 aby ste si zv\u00e4\u010d\u0161enie a ve\u013ekos\u0165 objekt\u00edvu nikdy nezamenili.<\/p>\n V\u00fdrobcovia niekedy prid\u00e1vaj\u00fa kr\u00e1tke ozna\u010denia ako LER (ve\u013ek\u00fd o\u010dn\u00fd reli\u00e9f), AO (nastavite\u013en\u00fd objekt\u00edv) alebo IR (osvetlen\u00e1 osnova). Pu\u0161koh\u013eady s pevn\u00fdm zv\u00e4\u010d\u0161en\u00edm s\u00fa mechanicky jednoduch\u0161ie, s men\u0161\u00edm po\u010dtom pohybliv\u00fdch \u0161o\u0161oviek; variabiln\u00e9 pu\u0161koh\u013eady vymie\u0148aj\u00fa \u010das\u0165 tejto jednoduchosti za flexibilitu prisp\u00f4sobi\u0165 sa bl\u00edzkym aj vzdialen\u00fdm cie\u013eom, \u010do je d\u00f4vod, pre\u010do je v\u00e4\u010d\u0161ina modern\u00fdch pu\u0161iek osaden\u00e1 variabilom. Ponuku, ktor\u00fa m\u00e1me k dispoz\u00edcii, si m\u00f4\u017eete pozrie\u0165 v na\u0161ej kateg\u00f3rii pu\u0161koh\u013eadov<\/a>.<\/p>\n Znalos\u0165 jednotliv\u00fdch \u010dast\u00ed u\u013eah\u010duje opis pu\u0161koh\u013eadu a pochopenie be\u017en\u00fdch probl\u00e9mov:<\/p>\n LPVO je variabiln\u00fd pu\u0161koh\u013ead, ktor\u00e9ho rozsah za\u010d\u00edna na, alebo ve\u013emi bl\u00edzko, hodnote 1x. Pr\u00e1ve t\u00e1to spodn\u00e1 hranica je jeho charakteristickou vlastnos\u0165ou: skuto\u010dn\u00e9 zv\u00e4\u010d\u0161enie 1x<\/strong> umo\u017e\u0148uje strie\u013ea\u0165 na kr\u00e1tke vzdialenosti s oboma otvoren\u00fdmi o\u010dami, takmer ako cez kolim\u00e1tor. Zachov\u00e1va sa tak \u0161irok\u00e9 zorn\u00e9 pole a preh\u013ead o situ\u00e1cii, od ktor\u00fdch z\u00e1vis\u00ed stre\u013eba na bl\u00edzko. Ak je minim\u00e1lne nastavenie znate\u013ene nad alebo pod 1x, stre\u013eba s oboma o\u010dami otvoren\u00fdmi je n\u00e1ro\u010dnej\u0161ia.<\/p>\n V\u00e4\u010d\u0161ina LPVO pon\u00faka osvetlen\u00fa z\u00e1mern\u00fa osnovu. Stredov\u00fd bod jasn\u00fd aj za denn\u00e9ho svetla umo\u017e\u0148uje, aby sa optika pri zv\u00e4\u010d\u0161en\u00ed 1x spr\u00e1vala podobne ako kolim\u00e1tor, zatia\u013e \u010do vy\u0161\u0161\u00ed v\u00fdkon dod\u00e1va presnos\u0165, ktor\u00fa kolim\u00e1tor neposkytuje. Ke\u010f\u017ee je z\u00e1mern\u00e1 osnova vyleptan\u00e1 do skla, zachov\u00e1te si pou\u017eite\u013en\u00fd z\u00e1mern\u00fd bod aj v pr\u00edpade, \u017ee sa vybije bat\u00e9ria osvetlenia \u2014 osvetlenie osnovu iba vylep\u0161uje, nie je na \u0148u odk\u00e1zan\u00e9. LPVO sa be\u017ene vyr\u00e1baj\u00fa vo verzi\u00e1ch 1-4x, 1-6x, 1-8x a 1-10x; v praxi s\u00fa ob\u013e\u00faben\u00e9 modely 1-6x a 1-8x pre ich rovnov\u00e1hu medzi r\u00fdchlos\u0165ou na kr\u00e1tke vzdialenosti a presnos\u0165ou na stredn\u00e9 vzdialenosti.<\/p>\n Ohniskov\u00e1 rovina ur\u010duje, kde sa z\u00e1mern\u00e1 osnova nach\u00e1dza vzh\u013eadom na zv\u00e4\u010d\u0161ovacie \u0161o\u0161ovky, a men\u00ed to, ako sa spr\u00e1vaj\u00fa zna\u010dky na pren\u00e1\u0161anie z\u00e1mern\u00e9ho bodu.<\/p>\n Naklik\u00e1vanie pomocou ve\u017ei\u010diek funguje pri akomko\u013evek zv\u00e4\u010d\u0161en\u00ed u oboch dizajnov. Ohniskov\u00e1 rovina ovplyv\u0148uje iba pren\u00e1\u0161anie bodu na osnove.<\/p>\n Z\u00e1mern\u00e1 osnova je obrazec sl\u00fa\u017eiaci na zamierenie a jej prisp\u00f4sobenie konkr\u00e9tnej \u00falohe je rovnako d\u00f4le\u017eit\u00e9 ako samotn\u00e1 optika:<\/p>\n O\u010dn\u00fd reli\u00e9f<\/strong> je vzdialenos\u0165, v akej mus\u00ed by\u0165 va\u0161e oko od okul\u00e1ra, aby ste videli cel\u00e9 zorn\u00e9 pole bez \u010diernych okrajov (tie\u0148ov) \u2014 zhruba 3,5 a\u017e 4 palce pri minim\u00e1lnom zv\u00e4\u010d\u0161en\u00ed, pri\u010dom pri maxim\u00e1lnom sa zni\u017euje na pribli\u017ene 2,5 a\u017e 3 palce. Spr\u00e1vny o\u010dn\u00fd reli\u00e9f chr\u00e1ni va\u0161e obo\u010die pred n\u00e1razom pu\u0161koh\u013eadu pri sp\u00e4tnom r\u00e1ze. Eye box<\/strong> je vyu\u017eite\u013en\u00fd priestor za optikou, v ktorom sa m\u00f4\u017ee va\u0161e oko nach\u00e1dza\u0165 a st\u00e1le vidie\u0165 pln\u00fd obraz bez tie\u0148ov. V\u00e4\u010d\u0161\u00ed eye box toleruje drobn\u00e9 odch\u00fdlky v polohe hlavy, a tak umo\u017e\u0148uje r\u00fdchlej\u0161ie zameranie. So zvy\u0161uj\u00facim sa zv\u00e4\u010d\u0161en\u00edm sa o\u010dn\u00fd reli\u00e9f a eye box spravidla zmen\u0161uj\u00fa, tak\u017ee poloha hlavy mus\u00ed by\u0165 presnej\u0161ia \u2014 to je jeden z d\u00f4vodov, pre\u010do sa na LPVO tak cen\u00ed tolerantn\u00e9 1x zv\u00e4\u010d\u0161enie.<\/p>\n Paralaxa<\/strong> je zdanliv\u00fd posun z\u00e1mernej osnovy vo\u010di cie\u013eu, ke\u010f sa va\u0161e oko vych\u00fdli z optickej osi. Zvy\u010dajne nepredstavuje probl\u00e9m do vzdialenosti asi 150 yardov, ale rastie so vzdialenos\u0165ou a zv\u00e4\u010d\u0161en\u00edm. Ak ju chcete skontrolova\u0165, oprite pu\u0161ku do stabilnej polohy a pri sledovan\u00ed osnovy mierne pohnite hlavou; ak osnova \u201epl\u00e1va\u201c po cieli, upravte bo\u010dn\u00e9 zaostrenie, k\u00fdm pohyb nezmizne.<\/p>\n Kolim\u00e1tor (\u010derven\u00fd bod) sp\u00e1rovan\u00fd s v\u00fdklopn\u00fdm zv\u00e4\u010d\u0161ovac\u00edm modulom (magnifierom) je hlavnou alternat\u00edvou k LPVO pre strelcov, ktor\u00ed chc\u00fa r\u00fdchlos\u0165 na kr\u00e1tke vzdialenosti s ur\u010dit\u00fdm zv\u00e4\u010d\u0161en\u00edm. Modul, zvy\u010dajne s pevn\u00fdm zv\u00e4\u010d\u0161en\u00edm 3x alebo 4x, sa montuje za kolim\u00e1tor a vykl\u00e1pa sa do zorn\u00e9ho po\u013ea pre stre\u013ebu na dia\u013eku, resp. sa odkl\u00e1pa z cesty pre pr\u00e1cu na bl\u00edzko, \u010d\u00edm sa r\u00fdchlym pohybom obnov\u00ed skuto\u010dn\u00fd 1x kolim\u00e1tor. LPVO namiesto toho pon\u00faka plynul\u00e9 variabiln\u00e9 zv\u00e4\u010d\u0161enie a jemnej\u0161ie zameranie na dia\u013eku. Ani jedna mo\u017enos\u0165 nie je univerz\u00e1lne lep\u0161ia: kolim\u00e1tor s modulom uprednost\u0148uje r\u00fdchlu pr\u00e1cu na bl\u00edzko s ob\u010dasn\u00fdm vyu\u017eit\u00edm na dia\u013eku, zatia\u013e \u010do LPVO vyhovuje strelcom, ktor\u00ed chc\u00fa flexibilitu plynul\u00e9ho zv\u00e4\u010d\u0161enia. Spr\u00e1vny v\u00fdber z\u00e1vis\u00ed od va\u0161ich prim\u00e1rnych vzdialenost\u00ed.<\/p>\n Zv\u00e4\u010d\u0161enie je kompromis: vy\u0161\u0161\u00ed v\u00fdkon pom\u00e1ha presnosti na dia\u013eku, ale zu\u017euje zorn\u00e9 pole, zmen\u0161uje eye box a spoma\u013euje zachytenie cie\u013ea na bl\u00edzko. Rozumn\u00e9 v\u00fdchodiskov\u00e9 body zah\u0155\u0148aj\u00fa:<\/p>\n Toto s\u00fa v\u00fdchodiskov\u00e9 body, nie pevn\u00e9 pravidl\u00e1 \u2014 spr\u00e1vna vo\u013eba z\u00e1vis\u00ed od zbrane, n\u00e1boja, prostredia a sk\u00fasenost\u00ed strelca. V\u017edy sa oplat\u00ed optiku vysk\u00fa\u0161a\u0165 priamo na pu\u0161ke a uisti\u0165 sa, \u017ee dok\u00e1\u017eete v prvom rade z\u00edska\u0165 r\u00fdchly a jasn\u00fd obraz.<\/p>\n Akon\u00e1hle si vyberiete optiku, je potrebn\u00e9 ju na pu\u0161ku pripevni\u0165 pomocou mont\u00e1\u017e\u00ed na pu\u0161koh\u013ead<\/a>, tak\u017ee sa oplat\u00ed zva\u017eova\u0165 oboje s\u00fa\u010dasne. M\u00f4\u017eete si prezrie\u0165 na\u0161u kompletn\u00fa ponuku pu\u0161koh\u013eadov<\/a>, vr\u00e1tane zna\u010diek ako Tangent Theta<\/a>, alebo n\u00e1s nav\u0161t\u00edvi\u0165 vo Varne a vysk\u00fa\u0161a\u0165 si optiku predt\u00fdm, ne\u017e sa rozhodnete.<\/p>\n","protected":false},"excerpt":{"rendered":" Pu\u0161koh\u013ead pln\u00ed dve \u00falohy naraz: zv\u00e4\u010d\u0161uje obraz cie\u013ea a prekr\u00fdva ho z\u00e1mernou osnovou (kr\u00ed\u017eom). V\u00fdber pu\u0161koh\u013eadu z\u00e1vis\u00ed od pochopenia nieko\u013ek\u00fdch pojmov \u2014 zv\u00e4\u010d\u0161enie, ohniskov\u00e1 rovina, z\u00e1mern\u00e1 osnova, o\u010dn\u00fd reli\u00e9f a paralaxa \u2014 a ich prisp\u00f4sobenia vzdialenostiam, na ktor\u00e9 re\u00e1lne strie\u013eate. Tento sprievodca vysvet\u013euje ka\u017ed\u00fd z nich zrozumite\u013en\u00fdm jazykom. Ako \u010d\u00edta\u0165 parametre pu\u0161koh\u013eadu Ka\u017ed\u00fd pu\u0161koh\u013ead je […]\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[17747],"tags":[],"class_list":["post-779318","post","type-post","status-publish","format-standard","hentry","category-sprievodcovia"],"acf":[],"_links":{"self":[{"href":"https:\/\/nbg.eu\/sk\/wp-json\/wp\/v2\/posts\/779318","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbg.eu\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbg.eu\/sk\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/nbg.eu\/sk\/wp-json\/wp\/v2\/comments?post=779318"}],"version-history":[{"count":1,"href":"https:\/\/nbg.eu\/sk\/wp-json\/wp\/v2\/posts\/779318\/revisions"}],"predecessor-version":[{"id":779528,"href":"https:\/\/nbg.eu\/sk\/wp-json\/wp\/v2\/posts\/779318\/revisions\/779528"}],"wp:attachment":[{"href":"https:\/\/nbg.eu\/sk\/wp-json\/wp\/v2\/media?parent=779318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbg.eu\/sk\/wp-json\/wp\/v2\/categories?post=779318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbg.eu\/sk\/wp-json\/wp\/v2\/tags?post=779318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Hlavn\u00e9 \u010dasti<\/h2>\n
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Variabiln\u00e1 optika s mal\u00fdm zv\u00e4\u010d\u0161en\u00edm (LPVO)<\/h2>\n
Prv\u00e1 ohniskov\u00e1 rovina vs. druh\u00e1 ohniskov\u00e1 rovina (FFP vs. SFP)<\/h2>\n
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Be\u017en\u00e9 typy z\u00e1mern\u00fdch osnov<\/h2>\n
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O\u010dn\u00fd reli\u00e9f, eye box a paralaxa<\/h2>\n
Alternat\u00edva kolim\u00e1tora so zv\u00e4\u010d\u0161ovac\u00edm modulom<\/h2>\n
Prisp\u00f4sobenie zv\u00e4\u010d\u0161enia danej \u00falohe<\/h2>\n
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Kde za\u010da\u0165<\/h2>\n