Membersihkan Lensa dengan Lens Pen : dianjurkan ato tidak ?

[maverick_007]

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Dianjurkan tidak membersihkan lensa dengan lens pen ? banyak yang bilang lebih baik tidak karena merusak coating lensa, bener enggak sih ?...

[ewn]

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Makanya lensa kudu dikasih filter. Kalo yang rusak kan filternya aja, tinggal beli baru

[maverick_007]

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Makanya lensa kudu dikasih filter. Kalo yang rusak kan filternya aja, tinggal beli baru

masalah nya, walaupun sudah diberi filter debu masih bisa masuk ke permukaan lensa...belum lagi kalo terjadi kondensasi...ditambah pertimbangan bahwa dengan menambahkan filter bisa mengurangi kualitas lensa

Thom's Maxim #19: Don't put extra glass or plastic in front of your expensive, well designed glass unless you need to.
There's a tendency amongst amateur photographers to put UV or Skylight filters on the front of every lens they own. This tendency is encouraged by photo dealers, who, as they ring up your expensive new toy add "and you want a skylight filter to protect that lens, right?"
The reason the dealer asks this is simple: it's a way to increase their profit. Mail order outfits such as B&H and Adorama have made it difficult for local dealers to charge list price on lenses (though some still manage). For example, the markup on a 24-85mm AF-S lens is quite small, meaning that the dealer might make only $50 on your purchase. The markup on a $30 filter can be as high as 80%. By selling you that filter, the dealer can make another $24 on the sale, increasing his profit by 50%.
So the question is: do you need that filter?
First, let's examine why a UV or Skylight filter is usually suggested: it won't change colors, nor does it lower the amount of light that passes through to the film/CCD significantly. While most are made of multicoated glass, the two extra air/glass surfaces will have a slight impact on overall contrast due to refraction. Some dealers will tell you that you need these filters to get proper color at altitude, or in bright conditions, or some other nonsense. But the truth is that film hasn't needed UV filtration for quite some time now--all modern film stocks have virtually no UV sensitivity.
So what have you gained by putting a filter in front of your lens? Well, the other normally suggested reason is "to protect the front element of your lens from accidental scratching or breakage."
I suppose. Small scratches on the front element of most lenses don't actually have much effect on optical performance, though. Indeed, unless the lens is a very wide angle lens, about the only optical effect a small scratch would have is exactly the same one as a filter has: lower contrast. (On wide angle lenses at small apertures, depth of field might be large enough so that you'd see optical degradation due to a scratch or blemish.) And if you're going to bump the lens hard enough to create more than a minor scratch, you're probably hitting it hard enough to bust the filter, and glass scratches glass pretty darn well in such situations, so I don't hold much faith in the "protection from breakage" theory.
In short, I don't see much of a reason to put a filter on my lens for protection. Indeed, I've found that lens hoods tend to do a better job at that, anyway.
But note what I implied earlier in this discussion: adding a filter to your lens degrades optical performance. A really well made filter won't degrade performance noticeably, but it will degrade. Poorly made or inexpensive filters degrade performance more than well made ones. Every air/glass (or air/plastic) transition in a lens adds reflections, despite multi-coatings and quality materials. Every reflection decreases overall contrast. Some reflections can be insidious in this respect--especially if light is hitting the front filter surface unevenly.


Quoted from : http://www.bythom.com/filters.htm

alasan saya menanyakan penggunaan lens pen, karena kepentingan pembersihan lensa pada saat2 yang mepet, seperti pada saat on location ato lagi liburan, dimana lensa tidak dapat di bawa ke toko camera untuk di bersihkan...

[dewanggaba]

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emang mahal sech perawatan barang2 kayak gini, ngerawatnya susah kalo rusak juga mahal.

[ewn]

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Memang ada beberapa yang bilang kalo memakai filter dapat mengurangi hasil TAPI seberapa jauhnyakah pengurangan itu?
Menurut website yang lu kasih, dia sendiri kan bilang 'Thom's Maxim #20: Good filters are expensive' makanya gua beli filter yang bukan asal2an punya dan paling penting dimata gua hasil poto dari kamera gua, gua suka koq (baik warna maupun ketajaman)

Soal lens pen, kalo semua orang takut / ragu2 termasuk lu buat ngebersihin lensa pake itu. Ga bakalan diciptakan lens pen

[The_Catz]

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Mungkin ada baiknya beli filter sesuai dengan merek lensanya yang di pake.
Misalkan pake lensa Canon, ya filternya Canon juga. Mahal? Bisa jadi, tapi kemungkinan penurunan kualitas foto akan menjadi lebih sedikit. Itu kalau kualitas foto yang menjadi standar.....

Kalo ngga perduli dengan kualitas foto yang tinggi, beli aja filter yang murah, lensa kita nantinya akan relatif aman dari kejadian-kejadian yang diuraikan teman-teman sebelumnya.

Balik lagi ke topiknya.....
Bahas tentang Lens Pen tersebut...ayo...

[zhock]

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pake filter yg murah sih ngefek tuh ke sharpnessnya.. waktu soalnya gw perna cobain.. poto tanpa filter n + filter.. pakenya sih filter uv yg biasa bwat lens guard.. hasilnya kliatan aj kalo tajeman ga pake filter.. tapi pas pake filter hoya uv kayanya ga gitu ketara.. IMHOO

[maverick_007]

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Back To Topic....
Ada yang pernah punya pengalaman menggunakan lens pen ?

[ewn]

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gua punya lens pen dan mempergunakannya. Apa yang lu mau tau?

[maverick_007]

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gua punya lens pen dan mempergunakannya. Apa yang lu mau tau?

merek nya apa bro ? udah berapa lama pake ? ada pengalaman buruk pas penggunaan nya ? harga nya berapa ?