Register · Search · Software · Join Upload & Sell · Hosting

	Moderated by: Fred Miranda
	Username   Password FM Forum Rules Canon SLRs, primes, and zooms lenses reviews FM Forums | Canon-mount SLRs | Join Upload & Sell    Search Used end    Archive 2008 · 1.4TC for sports?

j-bo Offline Upload & Sell: Off p.1 #1 · 1.4TC for sports? My equipment, rebel XT, 70-200 2.8L... I mainly shoot motocross and want to try the 1.4TC. Am I wasting my time? It will be mostly used on sunny days. I normally shoot in Av mode. Pro's/Con's? I do want to get the 300f4.0L IS, but if I can make do with the limited shots that I'd use it for with the TC, I'd be more happy saving the dollars. Apr 10, 2008 at 02:08 AM

aVOLanche Offline Upload & Sell: Off p.1 #2 · 1.4TC for sports? I use a Kenko Pro 300 1.4X on my 70-200 f2.8 IS.It is OK wide open(f4) and improves greatly when stopped down.On sunny days,you'll have plenty of ligh to go to f5.6 or even f8.The Kenko has excellent IQ. Apr 10, 2008 at 02:53 AM

rd4tile Offline Upload & Sell: On p.1 #3 · 1.4TC for sports? You just need to give it a try and see if the AF is fast enough for you to maintain the accuracy you're used to now with the XT and 70-200. I doubt the IQ will be the deal breaker. Apr 10, 2008 at 04:26 AM

andrew81 Offline Upload & Sell: Off p.1 #4 · 1.4TC for sports? Got a 300f4 and the 70-200 1.4 combo and the 300f4 is a lot sharper and focuses better with my MKII, it is rubbish with my 20D paper weight. Apr 10, 2008 at 04:30 AM

Alan321 Offline Dedicated FM Upload & Sell: On p.1 #5 · 1.4TC for sports? You'll lose the ability for the camera to do high-precision AF. Plus there may be some slow down due to the camera getting a darker image. I may be wrong but I think the slow-down is due only to the reduced light and contrast and not automatically due to the presence of a TC as is the case on the 1-series. Apart from the slower AF the IQ should be no worse than resampling an image taken with the bare lens to achieve the same magnification boost. A decent 300mm lens will look better but is uneconomical if you don't need it much. Unless you are buying mail-order you should be able to try one at the shop with your camera and lens to see how the AF speed is affected. I nearly forgot to mention: The TC will turn your 70-200 f/2.8 into a 100-280 f/4. You lose the 70-100 range. The 100-200 part of the range will have worse IQ than on the bare lens. The 200-280 is a bonus. With a zoom more so than with a prime lens you get a mixed bag of pros and cons when using a TC. - Alan Edited on Apr 10, 2008 at 05:27 AM Apr 10, 2008 at 05:24 AM

Ron Hew Offline Upload & Sell: Off p.1 #6 · 1.4TC for sports? Last year motogp world champion Casey Stoner...... 70-200 IS + EF1.4 II @ 280mm (adjusted the tone curve, trim & resize) Apr 10, 2008 at 04:18 PM

J.D. Offline Upload & Sell: Off p.1 #7 · 1.4TC for sports? EF 1.4 converter for sports? **** yeah! Taken on an EOS 10D with 300/2.8L + EF 1.4x BTW: I have found the EF 1.4x works well with the 70-200/2.8L IS. There are those here who do not recommend the combination but I can see no reason why not. Edited by J.D. on Apr 11, 2008 at 08:51 PM GMT Edited on Apr 11, 2008 at 10:51 AM Apr 11, 2008 at 08:56 AM

chris78cpr Offline Dedicated FM Upload & Sell: Off p.1 #8 · 1.4TC for sports? Was shooting Rugby Weds night with the 70-200F2.8IS and a 1.4x and i found the shots to be rather uninspiring. IT was dark and i was shooting at 1600 1/250th F4 @ 280mm on the 1dii but even still when they were in focus they were not amazingly sharp. Not soft but not sharp. In daylight it will be much better but for night time stuff it's not the best. If i had had a 200F1.8 however.... Chris Apr 11, 2008 at 10:14 AM

FNC80 Offline Upload & Sell: Off p.1 #9 · 1.4TC for sports? JD, Great shots. Reminds me of just how much I miss my 10D... Apr 11, 2008 at 03:17 PM

gbee Offline Upload & Sell: Off p.1 #10 · 1.4TC for sports? YES> Look I can't get this to work satisfactorily on 1D series. The AF slows down and tracking is off somewhat ~ now on an XT ? j-bo wrote: My equipment, rebel XT, 70-200 2.8L... I mainly shoot motocross and want to try the 1.4TC. Am I wasting my time? Apr 11, 2008 at 03:32 PM

gbee Offline Upload & Sell: Off p.1 #11 · 1.4TC for sports? Any chance you'd stay on topic ~~ the 70~200L ƒ2.8 zoom and the convertor. I have great shots from the 300mm ƒ2.8 and convector too. Not from the combo under discussion./ J.D. wrote: EF 1.4 converter for sports? **** yeah! Taken on an EOS 10D with 300/2.8L + EF 1.4xT Apr 11, 2008 at 03:34 PM

j-bo Offline Upload & Sell: Off p.1 #12 · 1.4TC for sports? Thanks all for the input. Since I'll be branching out, it won't hurt to spend the cash on the 1.4tc. In the future, I'm sure I'll be buying a 300 and can use it with that if I have negative results with the 70-200. I know.. the body is limiting me. I may upgrade that before the 300 comes along, well maybe. Apr 11, 2008 at 04:19 PM

jcolwell Offline Dedicated FM Upload & Sell: On p.1 #13 · 1.4TC for sports? I agree with Andrew's comments. I prefer to use the 300/4L IS (often with the 1.4x Extender), but I don't hesitate to use a 1.4x TC on the 70-200/2.8 L IS, when that's all I have with me. Apr 11, 2008 at 04:24 PM

Nill Toulme Offline Dedicated FM Upload & Sell: On p.1 #14 · 1.4TC for sports? chris78cpr wrote: Was shooting Rugby Weds night with the 70-200F2.8IS and a 1.4x and i found the shots to be rather uninspiring. IT was dark and i was shooting at 1600 1/250th F4 @ 280mm on the 1dii but even still when they were in focus they were not amazingly sharp. Not soft but not sharp. ... At least a part of your problem there could be motion blur. Over the years and hundreds of thousands of frames, I've found 1/400 to be the absolute minimum for consistently getting reasonably sharp images shooting action sports. 1/320 and below and I start losing an unacceptable number to subject motion blur. I will, and often do, underexpose at ISO 3200 rather than go below 1/400. Nill ~~ www.toulme.net Apr 11, 2008 at 05:58 PM

J.D. Offline Upload & Sell: Off p.1 #15 · 1.4TC for sports? gbee wrote: Any chance you'd stay on topic ~~ the 70~200L ƒ2.8 zoom and the convertor. I have great shots from the 300mm ƒ2.8 and convector too. Not from the combo under discussion. Well the question was about the 1.4 converter... If you're going to notice a drop in quality from any lens it would be one which pushes it really hard from the start. I did refer to the 70-200/2.8 because I have my own example but unfortunately I'm moving house at the moment at can't find the pics I was looking for. Apr 12, 2008 at 08:19 AM

chris78cpr Offline Dedicated FM Upload & Sell: Off p.1 #16 · 1.4TC for sports? Nill Toulme wrote: chris78cpr wrote: Was shooting Rugby Weds night with the 70-200F2.8IS and a 1.4x and i found the shots to be rather uninspiring. It was dark and i was shooting at 1600 1/250th F4 @ 280mm on the 1dii but even still when they were in focus they were not amazingly sharp. Not soft but not sharp. ... At least a part of your problem there could be motion blur. Over the years and hundreds of thousands of frames, I've found 1/400 to be the absolute minimum for consistently getting reasonably sharp images shooting action sports. 1/320 and below and I start losing an unacceptable number to subject motion blur. I will, and often do, underexpose at ISO 3200 rather than go below 1/400. Nill ~~ www.toulme.net Yeah i figured it was that. I know i can't expect to get everything bang on in those sort of conditions. I just found the 1.4x to degrade the quality somewhat. The main problem was the awful lights tbh. In good weather the 1.4x is pretty good. I think a faster lens is key for me. Even a 300F2.8 would have given me an extra stop which would have been a big difference in the outcome i think. Ugh, time to start raiding the piggy bank or to start ebaying the less used organs! Chris Apr 12, 2008 at 11:22 AM

aVOLanche Offline Upload & Sell: Off p.1 #17 · 1.4TC for sports? The Kenko 1.4X Pro 300 did better than I expected on a 70-200IS (this was shooting Div 1 college football on a sunny afternoon).It was much better stopped down stop or so.So lower light might be difficult.Focus was fast and accurate. Apr 12, 2008 at 01:49 PM

Nill Toulme Offline Dedicated FM Upload & Sell: On p.1 #18 · 1.4TC for sports? J.D. wrote: Well the question was about the 1.4 converter... If you're going to notice a drop in quality from any lens it would be one which pushes it really hard from the start. ... If by that you mean to say that the drop in IQ should be more apparent using the 1.4x on the 300 f/2.8 than on the 70-200, then that's incorrect. As I recall, the Canon TC's were actually designed in conjunction with, and specifically for use on, the big white primes. There's precious little IQ degradation with the 1.4x on any of those lenses, and the 2x is also very good on them. Using them on the L zooms, in contrast, is a relatively severe compromise, and the effect on both IQ and AF performance reflects that fact. Nill ~~ www.toulme.net Apr 12, 2008 at 04:00 PM

J.D. Offline Upload & Sell: Off p.1 #19 · 1.4TC for sports? That's interesting. I would have thought that, being such high performance lenses, any drop in IQ would have been more noticable but that is based on my (incorrect) assumption. I think I have the MTF charts for this so I'll have a look. Apr 13, 2008 at 03:23 AM

	end FM Forums | Canon-mount SLRs | Join Upload & Sell end

You are not logged in. Login or Register

Username   Password   Lost your password?