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HD PENTAX-D FA 21mmF2.4ED Limited DC WR
Last Updated: Jan 20 2022 14:25, Started by
TS030
, Oct 09 2021 23:50
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#1
Posted 09 October 2021 - 23:50
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Se apropie lansarea urmatorului obiectiv Pentax Limited - si al primului D FA Limited (primul Limited full-frame care nu a fost proiectat pentru film).
De obiectiv se stie de ceva vreme, acum insa avem un leak pe Amazon.co.jp cu urmatoarele detalii: Quote [In-body image stabilization mechanism SR / SRII] The Pentax digital single-lens camera K series is equipped with in-body image stabilization SR / SR II. Achieves image stabilization with all lenses. It is possible to reduce the size and weight of the lens. [Descriptive power of D FA 21mm F2.4 Limited] When shooting a distant view such as a landscape, a lens that realizes sharp and clear depiction on the entire screen and can express details up to the tips of leaves and branches and the moist air of the morning mist. is. [Three policies of Limited Lens] Enjoy "essence" shooting, capture the atmosphere that cannot be measured by "sensitivity" numerical values, and "immutable" forever pleasure. [High-definition depiction] Achieves depiction with less chromatic aberration with four ED glasses. In addition, a glass-molded aspherical lens and a high-refractive index lens have achieved sharp image performance with no image flow to the periphery despite the ultra-wide angle. [Equipped with DC motor] Quiet and smooth autofocus drive is realized by the in-lens motor drive AF. Pret: ¥ 156,415 (ma gandesc ca la noi va fi sub 1200 euro) Lansare pe piata: 19 noiembrie |
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#2
Posted 14 October 2021 - 09:01
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Obiectivul a fost anunta oficial:
https://news.ricoh-i...014_021404.html https://www.ricoh-im...dpentax-dfa-21/ https://www.ricoh-im...21f24_interview - 11 elemente in 8 grupuri, din care 4 elemente ED, 1 super ED si 1 asferic - diafragma circulara, controlata electronic (KAF4) - se pare ca au facut ceva special in privinta calitatii imaginii - weather sealing, motor DC Pret: 1499 euro Edited by TS030, 14 October 2021 - 09:02. |
#3
Posted 22 October 2021 - 19:42
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Incep sa apara primele review-uri, evident in japoneza:
https://www.yaotomi....24,limited.html https://news.mapcame...tax_21_limited/ |
#4
Posted 28 October 2021 - 13:23
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In asteptarea obiectivului - un prototip ce permite ajustarea bokeh-ului, folosit la dezvoltarea D FA Limited-ului.
Da, pe langa proiectarea computerizata au folosit si imagini, fotografii; pentru ca simularile nu ofera o evaluare completa a calitatilor optice ale unui obiectiv. Evident, procesul este lent si costisitor; nu stiu daca mai procedeaza altcineva astfel. [ https://www.ricoh-imaging.co.jp/english/products/limited_lens/interview/img/bod-img-02.jpg - Pentru incarcare in pagina (embed) Click aici ] Edited by TS030, 28 October 2021 - 13:23. |
#5
Posted 06 November 2021 - 11:43
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Obiectivul e disponibil pe ici, pe colo:
https://www.flickr.c...157720103909293 (pe cand si la noi?) |
#6
Posted 26 November 2021 - 17:16
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Deocamdata avem un pret: 7.259 ron. Ouch! (dar era de asteptat, asta vine un pic sub cei 1499 euro de pe Ricoh Imaging Europe).
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#7
Posted 29 November 2021 - 00:10
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Cat de aproape trebuie sa focalizezi ca sa vorbesti despre bokeh la 21 de mm si f/2.4 ?
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#8
Posted 29 November 2021 - 10:51
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Nici macar nu trebuie sa fii la distanta minima - 18cm.
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#9
Posted 29 November 2021 - 15:20
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In articolele alea postate de tine, sunt vreo cateva exemple.
Unele nu sunt focalizate perfect, dar asta conteaza mai putin. Ne putem face o idee despre cum iese fundalul. https://www.yaotomi....EG)-109433.html https://www.yaotomi....EG)-109514.html https://www.yaotomi....EG)-109538.html Edited by katran, 29 November 2021 - 15:22. |
#11
Posted 30 November 2021 - 06:15
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Am un Sigma 20 1.8 cu care m-am jucat de cateva ori la 1.8 si de asta eram curios de bokeh la 21 de mm. La distante normale de focalizare nu prea putem vorbi de bokeh sau profunzime redusa de camp cu un obiectiv de genul
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#12
Posted 30 November 2021 - 10:25
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Ce-i aia distanta normala? Si, mai important, ce-i aia distanta anormala?
 Pentax s-au exprimat clar, bokeh la fotografierea de aproape. Au pus si exemple. Mi se pare ciudat sa vii cu asemenea intrebari... |
#13
Posted 20 January 2022 - 14:25
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Review postat de Petapixel :
A Fabulous Lens with Poor Camera Support https://petapixel.co...camera-support/ Sunt faine imaginile. Cred ca este si meritul fotografului dar si al obiectivului. Edited by katran, 20 January 2022 - 14:27. |
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