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Occasional Contributor
Posts: 8
Registered: ‎11-01-2020

Re: loss of sharpness 100-400 using R5 and adapter

Owning 5D 3 and 5D 4, I am disappointed in my R5, at least handheld in comparison. Ive done mechanical shutter and electric. All tested with this lens. R5 are the least sharp. Tried IS on and off. At 100% crop the first one of a burst is not bad , but the focus seems to go softer after that. Adjusted settings as per some pro bird photographers. Using back button focus with mf-on, plus eye tracks no on the * button. Focus grabs fast on the 5r but soft

 

 

 

5D IV 5D III R5, 500f4, 100-400 II, 70-200f4 IS, 85f1.2, 24-70f2.8, 16-35f4IS, 50f1.4, RF100-500. TC 1.4II, RF TC 1.4
Occasional Contributor
Posts: 8
Registered: ‎11-01-2020

Re: loss of sharpness 100-400 using R5 and adapter

Quick update I went out again today and this time my buddy and I switched lenses, with our R5s. I took his RF 100-500, and he took my 100-400 with my adaptor. ( he’s had no R5 issues) As predicted all hand held , his were softer than he’s used to, and mine were the best I’ve taken with my R5. Note we were shooting outside and in freezing temps of 12 degrees. So our camera shake may even have been exaggerated. Bye bye 100 to 400 , just ordered the RF 100 to 500. I understand not everyone has that luxury. 

5D IV 5D III R5, 500f4, 100-400 II, 70-200f4 IS, 85f1.2, 24-70f2.8, 16-35f4IS, 50f1.4, RF100-500. TC 1.4II, RF TC 1.4
Frequent Contributor
Posts: 35
Registered: ‎07-10-2014

Re: loss of sharpness 100-400 using R5 and adapter

Man. This sucks for me. I have several very expensive third-party lenses that just look like crap with the R5 but look amazing on the EOS R. So now I'm faced with selling thousands of dollars worth of Tamron and Sigma lenses to buy RF lenses that are double the cost, or sell the R5 and just go back to the EOS R. Not a great position to be in.
VIP
Posts: 11,272
Registered: ‎08-13-2015

Re: loss of sharpness 100-400 using R5 and adapter


@johninbigd wrote:
Man. This sucks for me. I have several very expensive third-party lenses that just look like crap with the R5 but look amazing on the EOS R. So now I'm faced with selling thousands of dollars worth of Tamron and Sigma lenses to buy RF lenses that are double the cost, or sell the R5 and just go back to the EOS R. Not a great position to be in.

Are you using any lens filters on that gear?  My EF 100-400 f/4.5-5.6L IS II USM was never sharp until I got rid of the UV filter, and started using no filter.  I have since switched to using B+W Nano Clear filters with no ill effects.  I shoot with DSLRs.

 

BTW, I have owned a Sigma 150-500 and a 150-600 "C", and have not been overly impressed with th IQ compared to the Canon lens.  The Sigmas were not at all impressive shooting small subjects, something which the Canon excelle at.

----------------------------------------------------------------------------------------------------------------------------------------------------------

"Doctor told me to get out and walk, so I bought a Canon."
Frequent Contributor
Posts: 35
Registered: ‎07-10-2014

Re: loss of sharpness 100-400 using R5 and adapter


@Waddizzle wrote:

@johninbigd wrote:
Man. This sucks for me. I have several very expensive third-party lenses that just look like crap with the R5 but look amazing on the EOS R. So now I'm faced with selling thousands of dollars worth of Tamron and Sigma lenses to buy RF lenses that are double the cost, or sell the R5 and just go back to the EOS R. Not a great position to be in.

Are you using any lens filters on that gear?  My EF 100-400 f/4.5-5.6L IS II USM was never sharp until I got rid of the UV filter, and started using no filter.  I have since switched to using B+W Nano Clear filters with no ill effects.  I shoot with DSLRs.

 

BTW, I have owned a Sigma 150-500 and a 150-600 "C", and have not been overly impressed with th IQ compared to the Canon lens.  The Sigmas were not at all impressive shooting small subjects, something which the Canon excelle at.


I don't have this particular lens. I mostly use Tamron and Sigma primes and I do not use an y filters. Here's what I have:

 

* Tamron 35mm f/1.4
* Sigma 50mm f/1.4 Art
* Tamron 85mm f/1.8
* Sigma 105mm f/1.4 Art
* Tamron 70-200 f/2.8 G2

 

I get fantastic results with these lenses on my EOS R. They're crystal clear and sharp. I've yet to get even one single shot on the R5 with any of my lenses that comes close to the shots I get on the EOS R. It's very troubling and I'm not sure what to do at this point.

Honored Contributor
Posts: 7,670
Registered: ‎11-13-2012

Re: loss of sharpness 100-400 using R5 and adapter


@johninbigd wrote:

@Waddizzle wrote:

@johninbigd wrote:
Man. This sucks for me. I have several very expensive third-party lenses that just look like crap with the R5 but look amazing on the EOS R. So now I'm faced with selling thousands of dollars worth of Tamron and Sigma lenses to buy RF lenses that are double the cost, or sell the R5 and just go back to the EOS R. Not a great position to be in.

Are you using any lens filters on that gear?  My EF 100-400 f/4.5-5.6L IS II USM was never sharp until I got rid of the UV filter, and started using no filter.  I have since switched to using B+W Nano Clear filters with no ill effects.  I shoot with DSLRs.

 

BTW, I have owned a Sigma 150-500 and a 150-600 "C", and have not been overly impressed with th IQ compared to the Canon lens.  The Sigmas were not at all impressive shooting small subjects, something which the Canon excelle at.


I don't have this particular lens. I mostly use Tamron and Sigma primes and I do not use an y filters. Here's what I have:

 

* Tamron 35mm f/1.4
* Sigma 50mm f/1.4 Art
* Tamron 85mm f/1.8
* Sigma 105mm f/1.4 Art
* Tamron 70-200 f/2.8 G2

 

I get fantastic results with these lenses on my EOS R. They're crystal clear and sharp. I've yet to get even one single shot on the R5 with any of my lenses that comes close to the shots I get on the EOS R. It's very troubling and I'm not sure what to do at this point.


https://edit.photography/canon-r5-sensor-misalignment-issue-confirmed-no-sharp-images-with-any-lens/

 

Maybe give Canon a call. 1-800-OK-CANON

John Hoffman
Conway, NH

1D X Mark III, Many lenses, Pixma PRO-100, MX472, LR Classic
Occasional Contributor
Posts: 8
Registered: ‎11-01-2020

Re: loss of sharpness 100-400 using R5 and adapter

Jury is in for me. Tested my RF 100-500 , today without the 1.4 RF tc. That’s next. No comparison to my 100-400 II. For me the R5, 100-400 II PLUS 1.4 III, and the adaptor. Was not a winning combination. 100-500rf was. 

5D IV 5D III R5, 500f4, 100-400 II, 70-200f4 IS, 85f1.2, 24-70f2.8, 16-35f4IS, 50f1.4, RF100-500. TC 1.4II, RF TC 1.4
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