http://www.videomaker.com/community/forums/ Videomaker Community Forums » Tag: lens - Recent Posts en Wed, 15 Feb 2012 09:22:28 +0000 http://www.videomaker.com/community/forums/topic/the-crop-factor-associated-with-the-eos-canon-7d#post-70816 Thu, 08 Sep 2011 00:22:00 +0000 David Forrester 70816@http://www.videomaker.com/community/forums/ <p>KT: Having studied many of the great films ever made, and being a still photographer for years (note the Contax RTS3 in the mug shot) with 20-30K slides taken, my issue always was depth of field.  This is the creative art of still photography. I was almost anal in getting the right depth of field to achieve maximum effect on the viewer.  The  precise amount of depth of field is the make it or break it factor between stunning images or also rans.  Ya, that critical.  </p> <p>When you study films you can see the depth of field in almost every scene and surprisingly, over and over again, it is relatively deep - ie, using an f5.6-8-11 on a 50mm lens full frame camera for comparisons.  On a cine camera (Arri, Red, Sony f35 etc.) , the sensor is quite a bit smaller than a Canon 5D - more like a bit less than the 7D.  To attain similar Hollywood depth of field effects, the 7D is your choice.  The 5D is far too shallow at wide open aperture and trust me, it is a bitch to follow focus precisely if there is any quick fore-back movement - try next to impossible unless you have a Marshall monitor with peaking in it and can follow focus fast (it is not easy).  And it still doesn't quite look Hollywood.  The work around is to stop the lens down to f8-16 range, but at night, that is defeating the purpose of the large sensor.  So, you have to go wide angle - say 28mm f2.8.  Too wide, want an 85?  Then you are at f2 and the depth of field is about 3" at 7'.  </p> <p>Why do you think the 1/3 - 1/2" chip cameras are so popular with news crews - because focusing is almost a non issue. Everything is in deep focus relatively so.  even up close and the distant background.  Can be a deal breaker for many creative scenes for movies. Just doesn't cut it. It is like the Canon 5D 50mm with f45!! </p> <p>So, what is your objective?  News (small sensor), theatrical movies (7D, maybe 5D size), youtube (small), weddings (large), documentaries (small)?   After that - pick your camera for what you want to do with it.  Sorry for the rambling on, but I have a Sony Z5 (1/3") and a 5D (full frame) and have faced these situations over and over again - can be frustrating.  But those Reds are sure getting pretty attractive now!  (dream on!)</p> http://www.videomaker.com/community/forums/topic/the-crop-factor-associated-with-the-eos-canon-7d#post-70769 Tue, 06 Sep 2011 16:20:16 +0000 ktbproductions 70769@http://www.videomaker.com/community/forums/ <p>Wow thanks a lot to every one who responded to this forum.Every one who responded to this forum. Has giving me great knowledge and insight on my dilemma. I now have a better understanding of the crop factor. But realize that it can composted. By using different lenses and positioning yourself at different positions from your subject. The bottom line is by using these two facts and understanding the 1.6x crop factor. The full frame and crop issue won't even matter.Depending on what your shooting of course.</p> http://www.videomaker.com/community/forums/topic/the-crop-factor-associated-with-the-eos-canon-7d#post-70753 Tue, 06 Sep 2011 08:44:56 +0000 Justin Hastings 70753@http://www.videomaker.com/community/forums/ <p>KT,</p> <p>Just a quick addendum to what others have already said.  Almost no video cameras have full frame sensors, and they usually come with a stock lens that compensates for that for the most part.  If you have been using any other prosumer camera up until this point, I can guarantee it's had a cropped sensor.  The majority of prosumer cameras have 1/3" sensors that can crop the image worse than the 7D.  </p> <p>The major advantage, to me, of DSLRs is that they have easily interchangable lenses.  If you want a 28mm lens to look like 28mm on a 7D, step back a few feet and reframe the shot.  If you can't step back, buy a wider lens.  It's not always that easy with other traditional video cameras, but that's one of the big freedoms that DSLRs give you.  </p> http://www.videomaker.com/community/forums/topic/the-crop-factor-associated-with-the-eos-canon-7d#post-70613 Tue, 30 Aug 2011 15:32:20 +0000 tylerknight 70613@http://www.videomaker.com/community/forums/ <p>I would say if you are able to, get a hold of a Panasonic GH1 or GH2 and hack them to put out 50mbps AVCHD you will be blown away by the quality these little cameras put out. I consider it a close second to the 5d mk2 but much better than the 7d as far as aliasing and moire are concerned. especially good in lowlight</p> <p> </p> http://www.videomaker.com/community/forums/topic/the-crop-factor-associated-with-the-eos-canon-7d#post-70547 Sun, 28 Aug 2011 14:03:47 +0000 composite1 70547@http://www.videomaker.com/community/forums/ <p>KT,</p> <p>All 'full-frame' or 'cropped' image means is how much of 'what you see is what you get' in your processed image. The 5D has a bigger image frame than the 7D, but what do you plan on doing with it? The 5D is better suited for large projection than the 7D because of the larger frame, but there are things either camera can do better depending on the setting.</p> <p>If you're looking for a camera that can do it all, forget it. Much as I love the Canons, they've got issues. However, depending on what I'm doing, I can work around those issues and use them to my advantage when possible. Bottom line is; each camera can do amazing things and the image size is only an issue when it comes to large format projection. Now if you're planning to go theatrical with your final product, then the 5D will be your boy. If not, the 7D will handle the majority of the workload possible with the 5D.</p> <p>They are different cameras with similar capabilities and some features not possessed by the other. Figure out what you're going to be doing the most work on and pick your poison. If you haven't seen it already, check out The Great Shootout 2010. They go into pretty good detail as to what the two cameras can and can't do.</p> <p><a href="http://www.zacuto.com/shootout">http://www.zacuto.com/shootout</a></p> http://www.videomaker.com/community/forums/topic/the-crop-factor-associated-with-the-eos-canon-7d#post-70532 Sat, 27 Aug 2011 13:54:41 +0000 ktbproductions 70532@http://www.videomaker.com/community/forums/ <p>Thanks for your insight on this topic as well KT. This is such a great website for networking on information. But i have another question. Would the cropping be a issue if i were to purchase the canon 5D. Because one of the outstanding features of the 5D is the full frame.</p> http://www.videomaker.com/community/forums/topic/the-crop-factor-associated-with-the-eos-canon-7d#post-70530 Sat, 27 Aug 2011 13:24:41 +0000 composite1 70530@http://www.videomaker.com/community/forums/ <p>KT,</p> <p>Rob nailed it with his description. All the cropping means is you'll just have to pick out your lenses accordingly to match the angle of view you're looking for. Like Rob pointed out, 'nobody's going to know the difference'. Concentrate on using the available image to its best and you'll be fine.</p> http://www.videomaker.com/community/forums/topic/the-crop-factor-associated-with-the-eos-canon-7d#post-70527 Sat, 27 Aug 2011 10:26:21 +0000 ktbproductions 70527@http://www.videomaker.com/community/forums/ <p>Thanks a lot robgrauert for the quick response. I have a good understanding of what the crop factor means now.</p> http://www.videomaker.com/community/forums/topic/the-crop-factor-associated-with-the-eos-canon-7d#post-70519 Sat, 27 Aug 2011 01:52:49 +0000 robGRAUERT 70519@http://www.videomaker.com/community/forums/ <p>It's not a big deal. No one will look at your video and say, "Oh he was shooting with a cropped sensor" All it means is the image sensor is a bit smaller than the image created by the lens. So if you're shooting with a 24mm lens, it'll look more like a 35mm lens. Whatever lens you mount will look a bit longer.</p> <p>I believe the crop factor is 1.6, so you just multiply that by the length of your lens, and you'll know what lens really "looks like" </p> http://www.videomaker.com/community/forums/topic/the-crop-factor-associated-with-the-eos-canon-7d#post-70516 Fri, 26 Aug 2011 19:19:17 +0000 ktbproductions 70516@http://www.videomaker.com/community/forums/ <p>Im seriously considering purchasing the Eos canon 7D. But I'm concern with the crop factor thats associated with the 7d. From my research this can be an issue depending on the type of lens, because it can hinder the full potential of the lens. Can anyone assist me with a better insight on which would be a better lens for this particular model.</p> http://www.videomaker.com/community/forums/topic/wide-angle-attachments-mods#post-66260 Wed, 09 Mar 2011 13:41:36 +0000 roblewis56 66260@http://www.videomaker.com/community/forums/ <p>This video shows how I evaluate my Canon WIDE-CONVERTER<br /> WD-H37II 0.7x Lens on my Canon HF11 Camcorder. The lens is screwed on top of a<br /> 37mm UV Filter already on to keep out dirt.</p> <p> </p> <p> <a href="http://www.youtube.com/watch?v=Gl71JtOdy_w">http://www.youtube.com/watch?v=Gl71JtOdy_w</a></p> http://www.videomaker.com/community/forums/topic/wide-angle-attachments-mods#post-66166 Mon, 07 Mar 2011 04:24:52 +0000 birdcat 66166@http://www.videomaker.com/community/forums/ <p>I have used both wide angle and telephoto adapters - both successfully.  You don't have to spend a fortune however my experience has been with official branded Sony adapters on my Sony Handycam.</p> <p>Just be aware if you're shooting in 16 X 9, you need an adapter that takes that into consideration, or you will crop parts of the screen when going wide.</p> http://www.videomaker.com/community/forums/topic/wide-angle-attachments-mods#post-66139 Sun, 06 Mar 2011 07:54:18 +0000 Chuck Zoots 66139@http://www.videomaker.com/community/forums/ <p>I agree, I have two one a .50 ultra wide that will allow limited zooming but useful when I need a really wide shot and a .70 with the ability to zoom through the entire range of my lens which makes it flexible enough to leave it mounted to one of my cameras so its ready to use when I need it. Just make sure that you get one that is compatible with the image quality levels of your camera</p> http://www.videomaker.com/community/forums/topic/wide-angle-attachments-mods#post-66127 Sat, 05 Mar 2011 20:46:54 +0000 XTR-91 66127@http://www.videomaker.com/community/forums/ <p>I'd guess they'd work the same way as they do on any video camera. How far do they zoom out?</p> http://www.videomaker.com/community/forums/topic/wide-angle-attachments-mods#post-66124 Sat, 05 Mar 2011 19:42:20 +0000 Brian 66124@http://www.videomaker.com/community/forums/ <p>Anyone try wide-angle attachments &amp; mods like the one discussed <a href="http://guidewired.wordpress.com/2009/11/06/kodak-zi8-mod-wide-angle-lens-w-macro-attachment/">here</a>?</p> <p>(<a href="http://guidewired.wordpress.com/2009/11/06/kodak-zi8-mod-wide-angle-lens-w-macro-attachment/">http://guidewired.wordpress.com/2009/11/06/kodak-zi8-mod-wide-angle-lens-w-macro-attachment/</a>)</p> <p>I'm thinking of getting one for my new Zi8 that's about to come soon. But I thought I'd post here to see what you all think?</p> http://www.videomaker.com/community/forums/topic/sony-mhs-cm1-the-webbie-lens#post-65384 Sun, 06 Feb 2011 21:09:10 +0000 the_flash20 65384@http://www.videomaker.com/community/forums/ <p> I was wondering do they make a fisheye lens for this video camera?</p> <p>or can you even attach an different lens in at all on mhs-cm1 webbie?</p> http://www.videomaker.com/community/forums/topic/fs-century-optics-3x-fisheye-bayo-mount-for-dvx-perfect-cheap-gotta-go#post-57514 Sat, 17 Apr 2010 08:13:21 +0000 benjipond 57514@http://www.videomaker.com/community/forums/ <p>Bought last year on BH new, its the OVS-FE3X-DVX Century Optics .3x ultra fisheye lens for DVX bayo mount cameras.  The glass is FLAWLESS! pictures will be send to serious buyers.  like i said, glass is flawless and pictures really dont do justice but will provide with photo and legitimacy contact information within the photo.  Im looking to get around $500 for it... its worth much more as we all know but figured at such a good price i could sell it quick</p> <p> </p> <p>I am legit.  Safe transaction is gaurenteed and contact info will be given.  I myself almost was scammed a few years back trying to purchase a lightly used DVX from dvxuser.com where i commonly browse around.  Please EMAIL ME! <a href="mailto:benjipond@yahoo.com">benjipond@yahoo.com</a>  with questions or offers.... lens MUST GO THIS WEEK!</p> http://www.videomaker.com/community/forums/topic/dslr-on-steroids#post-54343 Sat, 23 Jan 2010 12:45:52 +0000 composite1 54343@http://www.videomaker.com/community/forums/ <p>I ran across this video from the team at Zacuto as they had some filmschool students put together an experimental rig using the Canon 7D with a Panavision Prime lens. This is definitely more for the Advanced Pro's, but I think any true 'Gear Geek' could spare a few centiliters of drool over the potential of this setup. It'll be nice to see what they shot with this rig!</p> <p><a href="http://vimeo.com/7512055">Zacuto custom rig for Panavision + Canon 7D setup</a> from <a href="http://vimeo.com/zacuto">Zacuto USA, Steve Weiss</a> on <a href="http://vimeo.com">Vimeo</a>.</p> http://www.videomaker.com/community/forums/topic/looking-for-an-adapter-ring#post-52596 Wed, 25 Nov 2009 10:24:04 +0000 M-323 52596@http://www.videomaker.com/community/forums/ <p>OK this would normally not be so difficult but in this case, it is.</p> <p>I have a household camera - Canon Zr500. Picked it up cause it was the only small camcorder I could find with an external mic port. </p> <p>I also have a Raynox HD-5000Pro wide angle lens. It comes with a bunch of adapter rings and it fit on several previous home camcorders I had before this except for my current Zr500.</p> <p>You would think Canon would know what the lens size is but noone there could tell me what the lens size is.</p> <p>In one case where I needed the wide angle, I resorted to cutting the carboard center from a toilet paper roll and modifying it to hold the lense to the camera with some tape.</p> <p><a href="http://s754.photobucket.com/albums/xx187/martial323/lens/?albumview=grid">I've posted some pics here</a> so you can see what were up against.<a href="http://s754.photobucket.com/albums/xx187/martial323/lens/?albumview=grid"><br /></a></p> <p>could anyone suggest how I could mate these two together? Is there any other type of adapter, besides a ring that would hold them together?</p> http://www.videomaker.com/community/forums/topic/manually-zooming-in-servo-mode#post-50714 Wed, 09 Sep 2009 16:52:21 +0000 grinner 50714@http://www.videomaker.com/community/forums/ <p>It can if you romp on it too hard. It's why they offer full manual. You'll still feel a lil resistance but you'll do no harm in this mode unless ya get waay out of hand. You can sense it. Use the force, Luke. </p> http://www.videomaker.com/community/forums/topic/manually-zooming-in-servo-mode#post-50708 Wed, 09 Sep 2009 13:56:01 +0000 NathanBlair 50708@http://www.videomaker.com/community/forums/ <p>Hey, I own a Panasonic AG-HVX200. Somebody asked me this today, and made me curious...</p> <p>With this camera, of course there is a manual zoom mode, which allows free movement of the zoom ring for quick snap-zooms. But also, when you set it to Servo, you are still able to manually zoom with the ring, it's just a little stiffer. The question is, does it harm the mechanics of the zoom lens to operate it by the ring when its set to Servo Zoom mode? </p> http://www.videomaker.com/community/forums/topic/will-pointing-your-camera-at-the-sun-cause-damage#post-50374 Wed, 26 Aug 2009 15:24:00 +0000 neckbreakerb 50374@http://www.videomaker.com/community/forums/ <p> Thanks for the tips guys. I really appreciate it. </p> http://www.videomaker.com/community/forums/topic/will-pointing-your-camera-at-the-sun-cause-damage#post-49836 Wed, 05 Aug 2009 18:12:42 +0000 zoobie 49836@http://www.videomaker.com/community/forums/ <p>I love pointing my camera(s) at the sun and shooting...some of my best footage has been shot this way. </p> <p>all manuals say that...but, by accident, the sun got behind a hot air balloon I was shooting. I think they mean don't leave your cam pointed at the sun for extended periods or wide open on manual exposure.</p> <p>however, do this at your own risk as I hereby shall not be held accountable for damage to your cam(s)</p> http://www.videomaker.com/community/forums/topic/will-pointing-your-camera-at-the-sun-cause-damage#post-49799 Wed, 05 Aug 2009 02:30:45 +0000 Blake Larson 49799@http://www.videomaker.com/community/forums/ <p> You might want to look into a &lt;span style="line-height: 115%; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;; color: black; font-size: 7.5pt;"&gt;polarized or &lt;span style="line-height: 115%; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;; color: black; font-size: 7.5pt;"&gt;neutral density filter. They also make a big &lt;span style="line-height: 115%; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;; color: black; font-size: 7.5pt;"&gt;difference in outdoor video.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;</p> <p> </p> http://www.videomaker.com/community/forums/topic/canon-wide-converter-wd-58h-camcorder-lens-for-gl-xm#post-49059 Sun, 12 Jul 2009 05:29:43 +0000 bottenbay 49059@http://www.videomaker.com/community/forums/ <p>For Sale ON eBay.com:</p> <p><a href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;ssPageName=STRK:MESELX:IT&amp;item=220449163926" rel="nofollow">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;ssPageName=STRK:MESELX:IT&amp;item=220449163926</a></p> <p>This Product Used only ONE TIME for a film project.<br />Like new</p> <p> </p> http://www.videomaker.com/community/forums/topic/will-pointing-your-camera-at-the-sun-cause-damage#post-48973 Fri, 10 Jul 2009 01:07:34 +0000 jimcvideo 48973@http://www.videomaker.com/community/forums/ <p>Have you ever taken a magnifying glass on a sunny day and held it over a piece of paper? If not, you should, it's tons of fun. It sets the paper ablaze. However, as fun as burning paper is, the problem is that your camera lenses are a lot like a magnifying glass, in the sense that they focus light onto a small point.</p> <p>The sun outputs a LOT of energy, enough to light up half the planet's sky at a time. And when you point your camcorder at the sun, you're directing all of that onto a space smaller than an 8th of an inch. Chaos shall ensue.</p> <p>Now, there are techniques to shoot the sun. When the sun is rising or setting, it's being diffused by a lot more atmosphere, and should be safer to shoot. I also wouldn't be too worried if you doing a fast pan of the sun during the day, as long as you weren't lingering. Additionally, there are lens adapters that are designed specifically to make it safe to shoot the sun. But I would be really scared of pointing my camera directly at the sun. The best case scenario is that you'll have exposure issues. But more likely than not, you'll burn out a few pixels on your CCD chip. The camera as a whole will still be useful for the most part, except for the sun sized spot that's permanently white or black from being melted.</p> <p>And while the lens is important, I actually know of a guy who burnt out his viewfinder by leaving the back end of the camera facing the sun. The lens on the eyepiece acted like that magnifying lens, and the sun's heat melted the LCD panel. Whoops!</p> http://www.videomaker.com/community/forums/topic/will-pointing-your-camera-at-the-sun-cause-damage#post-48957 Thu, 09 Jul 2009 13:45:43 +0000 neckbreakerb 48957@http://www.videomaker.com/community/forums/ <p> Can someone help me answer a question?  I own the Sony FX7; and the instruction manual says that the camera should not be pointed directly at the sun, and that doing so can result in damage to the unit.  But lots of videos have shots of the sun in them.  In fact, videomaker's Tips and Tricks has an instructional video on shooting the sun.  Is there really a risk of damaging my camera?  If so, what needs to be done to prevent the damage?  Thanks!</p> <p> </p> http://www.videomaker.com/community/forums/topic/i-need-jvc-accesorieshelp-me-1#post-47139 Sun, 24 May 2009 15:44:51 +0000 mikevinckier93 47139@http://www.videomaker.com/community/forums/ <p> i need a 46 mm wide lens for it.......</p> http://www.videomaker.com/community/forums/topic/i-need-jvc-accesorieshelp-me-1#post-47097 Fri, 22 May 2009 08:48:42 +0000 cfulton 47097@http://www.videomaker.com/community/forums/ <p>For the lens: find the filter diameter of the camcorder (usually a number with a slashed "O" next to it) or take the camcorder with you to your favorite local camera shop for assistance. The fisheye lens that you need will be marketed as a "conversion lens". You will end up with a lens that screws directly into the camcorder's filter threads.</p> <p>As for the battery, the same local camera shop should be able to get you hooked up; otherwise, there are a number of battery stores in most towns that can also help you track down what you need. There are a few third parties that make batteries, but some camcorder manufacturers will assert that their batteries are better (because they want to be the ones that earn your battery business.) Your mileage may vary.</p> http://www.videomaker.com/community/forums/topic/i-need-jvc-accesorieshelp-me-1#post-47025 Wed, 20 May 2009 12:02:19 +0000 mikevinckier93 47025@http://www.videomaker.com/community/forums/ <p> </p> <p> i need a fisheye wide angle lens, and a extra battery (prefer 5 hr.). its for my JVC GZ HD7. email me with anything please! </p> <p><a href="mailto:mikevinckier93@hotmail.com">mikevinckier93@hotmail.com</a></p>