Yang baru dari Canon; EOS 5DS dan EOS 5DS R

Canon EOS 5DS dan Canon EOS 5DS R
Canon EOS 5DS dan Canon EOS 5DS R. Photo copyright Canon.

Tidak dapat dipungkiri bahwa saat ini perkembangan perangkat elektronik dan digital semakin pesat. Demikian pula yang terjadi pada ranah fotografi. Produsen perangkat fotografi berlomba-lomba memuaskan hasrat para penggunanya.

Dari yang sebelumnya kegiatan fotografi “terbatas” pada kegiatan mengambil gambar menggunakan kamera saja, hingga berkembang saat ini kegiatan fotografi juga dapat dilakukan dengan menggunakan perangkat digital lain seperti telepon seluler atau komputer tablet.

Canon sebagai salah satu produsen perangkat fotografi, sebentar lagi akan secara resmi meluncurkan produk kamera terbaru mereka, yaitu: Canon EOS 5DS dan Canon EOS 5DS R. Canon dengan tagline EOS mereka sudah sangat dikenal pada banyak khalayak. Apakah para penghobi kegiatan fotografi maupun para praktifi fotografi profesional.

Saya sendiri adalah pengguna Canon. Semua kamera yang saat ini saya gunakan dalam kegiatan saya sebagai professional industrial and corporate photographer juga sangat mengandalkan produk-produk Canon dalam menghasilkan karya-karya saya. Baik itu didarat (onshore), diudara (aerial) maupun ditengah laut (offshore).

Artikel ini tidak bermaksud untuk menyajikan informasi yang mendalam serta tidak pula sebagai sebuah review teknis; karena sampai dengan saat ini saya baru memegang langsung Canon 5DS itu sekitar 15 menit ketika berada di Jakarta Convention Center beberapa waktu yang lalu ketika menghadiri pamera FOCUS 2015.

Canon EOS 5DS dan Canon 5DS R 

Menurut informasi yang berasal dari situs resmi Canon, serta beberapa review yang saya peroleh dari beberapa forum fotografi, secara singkat paling tidak ada 3 hal mendasar yang membedakan versi Canon EOS 5DS dan Canon EOS 5DS R dengan versi yang sebelumnya, yaitu:

  1. Sensor 50.6 Megapixel. Pada kedua versi terbaru EOS tersebut, Canon menanamkan full frame CMOS sensor 50.6 Megapixel, hal tersebut merupakan hal yang pertama kali dilakukan oleh Canon untuk varian produk EOS mereka. Dengan penerapan sensor tersebut, rentang efektif pixel adalah 8712 x 5813 yang membuat EOS 5DS dan EOS 5DS R dapat menghasilkan foto yang dapat digunakan untuk percetakan skala besar dengan baik.
  2. Sensor Dual DIGIC 6. Canon EOS 5DS dan Canon 5DS R juga dilengkapi dengan Dual DIGIC 6 yang memudahkan bagi para penggunanya untuk dapat membuat serta memproses foto atau video HD dengan lebih cepat.
  3. LPF (EOS 5DS) dan LPF Cancellation (EOS 5DS R). Pada EOS sebelumnya, fitur LPF atau Low-Pass Filter merupakan fitur standar pada setiap versi EOS, maka pada EOS yang terbaru, terdapat fitur LPF Cancellation. Bagi para praktisi fotografi (lansekap, produk, dll) yang membutuhkan tingkat detail yang tinggi, maka EOS 5DS R yang sudah dilengkapi dengan fitur LPF Cancellation tentu akan dapat membantu.

Secara garis besar, yang membedakan antara Canon EOS 5DS dan Canon EOS 5DS R terletak pada fitur LPF Cancellation yang hanya terdapat pada EOS versi 5DS R.

Salah satu yang menarik dari ketiga fitur baru tersebut adalah LPF Cancellation yang penjelasannya dapat disimak pada cuplikan surat elektronik dibawah ini yang dikirimkan oleh Rudy Winston dari Canon Amerika.

The basics are as follows

  1. Canon’s engineers believe strongly that a low-pass filter is an important aid, IN GENERAL, to image quality with digital SLRs. We’ve had one in-place immediately in front of the image sensor on all previous EOS D-SLRs to date.
  2. Low-pass filters basically attack problems with false colors and especially occasional moire patterns that can arise when fine, repeating patterns (think of the weave in some fabrics, for instance) begin to line-up with and approach the size/frequency of the patterns of pixels on an image sensor. Low-pass filters work by spreading the incoming light by the width of approximately ONE PIXEL horizontally (left and right), and a second low-pass filter layer does the same vertically, splitting it up and down.
  3. This scattering of light in effect produces a slight blurring effect (usually easy to correct with slight Unsharp Mask-type sharpening in the computer, after the fact, or judicious use of the in-camera sharpening via Picture Style control). But the by-product is far less tendency to give psychedelic-looking moire patterns with certain subjects, in certain conditions (and of course, you never see these moire patterns in the viewfinder, before the fact). (Note: To learn more about moiré and see two good example photos, click here. Moiré is rarely a problem for nature photographers. There are many pronunciations: “mwahr” is the most common and the most widely accepted.)
  4. The filter array that includes the two different low-pass filters mentioned above is a part of the optical system, even though it’s sandwiched right up against the front of the imaging sensor. The total filter array includes at least one layer of IR-absorbing glass, a dichroic mirror layer to reflect infrared and UV illumination, and what they call a phase plate, which changes the polarization of incoming light into circular polarization. In other words, it’s a pretty sophisticated optical sandwich, even though to the naked eye it appears as a super-thin layer of glass in front of the sensor.
  5. All that said, it is true that if we were to remove the low-pass filter component, in theory, we’d have the potential of greater initial, out-of-the-camera sharpness in many situations. And, it’s definitely true that the moire pattern risk mentioned above won’t occur in the majority of images, unless you were shooting things like fabrics or products with very fine, repeating line patterns on a regular basis. (For the type of bird imaging you normally do, or most landscape applications, I’d guess the risk of moire is pretty much nil most of the time.)
  6. As a parenthetical note, these moire patterns, IF they do occur, can usually be moderated or even eliminated in some cases with various image-editing techniques… Photoshop gurus have a multitude of them, and some RAW file processing software now contains anti-moire tools for these occasions. Still, it’s an extra step — sometimes a fairly sophisticated set of them — to reduce or remove moire completely from an image, if it does occur.
  7. Because the afore-mentioned low-pass filter array is a part of the optical path, you can’t just remove it — you’d change the effective length of the optical axis, and have to re-design the entire camera body slightly, including the AF system’s optical path, to accommodate such a change. Since Canon made the strategic decision to offer TWO high-resolution cameras, a different technique was needed to achieve removal of the low-pass filter effect, without upsetting the optical system within the camera body. And, without the expense of (in effect) having to design an entirely new camera from scratch, with slightly altered internal dimensions.
  8. All that said, here’s what Canon has done: they need two low-pass filter layers in-place to preserve the same optical length within the body. The traditional EOS 5DS of course does just that, with Canon’s typical low-pass filter approach. With the EOS 5DS R, they also have two low-pass filter layers in-place. The first scatters the incoming light by spreading it vertically, similarly to how it’s done in the standard 5DS camera. But the next low-pass filter layer bends the incoming light VERTICALLY again, in the reverse direction — back to ONE single ray path, so the scattered light is effectively “un-scattered” and re-focused into a single optical beam. Thus, the low-pass filter effect is “cancelled.”
  9. The result of this cancellation of the low-pass filter effect in the EOS 5DS R is a slight — but noticeable, in many instances — increase in the overall contrast and sharpness of fine detail, lines, and texture in subjects. Canon is clear that photographers need to understand that a by-product of this is a risk of moire patterns appearing occasionally, and that it’s up to the shooter to work with post-processing to limit this effect if and when it happens. But I have no doubt that there would be a bit more detail and texture in things like feather detail in birds, for example. I don’t want to over-state the improvement in sharpness in the EOS 5DS R vs. the standard 5DS model… you can see it when you start magnifying images and look for it, but it’s not an “in-your-face” type of obvious difference that my Mom would immediately spot when viewing on-screen at 100%.
  10. Bottom line: we anticipate that the majority of sales of our 50.6 million pixel camera will be the standard 5DS camera, and that in the eyes of most users, the 5DS R will be seen as something of a specialty version. Buy the latter for the right reasons, and it’ll delight you. We just want all potential buyers, and dealer staff, to understand that along with its added initial image sharpness does come a risk of occasional optical imperfections in certain shooting situations. I’ll finish where I started: overall, Canon’s engineers remain very firm that in their opinion, OVERALL digital image quality is enhanced by the use of traditional low-pass filter design in digital SLRs. We’ll let the market be the ultimate judge!

Let me know if you have any other questions, or if any of this is not perfectly clear. Good questions you ask, and it’s up to us here at Canon to make sure every potential customer understands the answers to them! Be well, stay warm!

Rudy Winston
Canon USA

Belum banyak memang yang dapat saya sampaikan pada artikel ini. Namun, dengan perkembangan yang semakin maju dan dengan persaingan yang semakin ketat antara para produsen kamera dan juga rentang jenis produk fotografi, maka kehadiran Canon EOS 5DS dan Canon EOS 5DS R tentu akan menambah semarak dunia fotografi.

Pesatnya perkembangan kamera mirrorless ternyata tidak menyurutkan Canon untuk tetap berinovasi dalam memproduksi kamera-kamera berkualitas dengan beragam pilihan sesuai dengan kebutuhan para penggunanya.

Semoga nanti saya bisa segera dapat menggunakan salah satu dari produk terbaru Canon tersebut dalam kegiatan industrial dan corporate photography yang saya tekuni. Dan mari kita nantikan bersama hadirnya Canon 5DS dan Canon 5DS R secara resmi di Indonesia.

Berikut adalah beberapa video yang dibuat oleh Canon sebagai contoh dari pemanfaatan Canon EOS 5DS dan Canon EOS 5DS R.

Demikian. Semoga bermanfaat.

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