Samyang Rokinon Vivitar 14 2.8 lens

samsen wrote in post #11796018
I think this is one those lenses that "You get something that probably I won't". So lucky owners with good copy.

did you get a bad copy.... not much can go wrong with this lens...no fancy AF, just live view focus and you know exactly waht you're getting

I wonder if this awesome lens will have any effect in 14L's orbital price

$2200 maybe made sense when there was no competition but whith a ultrasharp $300 lens that does almost the same with some PP to fix colors and distorsion maybe $1500 would be a fairer price, in the line of 24L and 35L

Here some of my Samyang 14/2.8 pictures. Got the lens in April 2010, and had some mechanical problems with it.
Focus scale deadjusted. After figing that, some times later I got it again, and found that some screws (that I dod not touch before) opend a bit...
I think because of the bad mechanical quality of the Samyang Canon can hold their price up.

ZoneV wrote in post #11808019
I made a simple LR correction profile for the EOS 5D classic, one with and one without vignetting correction. You could find that on my homepage. If I remember right, the profil mentioned before is without vignetting correction.

The one before was made for 5dII, I've been using it on my 5d classic.. I'll try yours!

The previous one did have vignetting taken out, you can set how much you want to leave/take out in LR3..

love the COW shot above... you must have got COW mucous on the lens that close

BasicLearner wrote in post #11758690
Thanks for the reply. In indoor low light condition (without tripod), I may want to use the lens in which case I would like to use 2.8 aperture. It will be difficult for me to ensure right focus. Won't the focus confirmation chip help in that scenario?

Yes, it will - or at least, it did in my case. I found that focusing was not at all easy to get right. Manual focus using the regular viewfinder is a waste of time and on my copy of the lens, the focus scale is so far out that it's hopeless too (and this is not an uncommon problem - Samyang need to fix this). What's worse is that there is some 'backlash' in the mechanism which means that the actual focus for any given marking will depend on whether you're approaching it from the infinity end or the near end. Live view is fine of course - but it's less than ideal if you're hand-holding and of course it's not great in bright light.

A focus conf chip solves all this, but there are a few things to note:

- There are several versions. Some have a programmable function that lets you set the Exif info for focal length, max aperture and, most importantly, whether it tells the camera if the lens is operating in 'MF' or 'AF' mode. This is important since the camera seems to allow more latitude in showing focus confirmation (focus point flashing) if it thinks the lens is in AF mode. So, it works better if the chip is set to tell the camera that it's MF. I have had much more success in getting precise focus this way. So, make sure you get a programmable version. I have the Tagotech chip, which is supplied by a company in SIngapore. They are very reliable and can be found on eBay.

- The Tagotech chip needs shimming to make it stand sufficiently proud of the mount to make contact with the camera's pins. Thankfully, a credit card is just the right thickness, so a carefully cut shim from an old card works fine.

- The chip is small and I personally was not keen to glue it. I found that using double-sided sticky tape was easy and perfectly strong enough. It also allows re-positioning of the chip. This is important since although the Tagotech chip comes with an alignment tool, I still managed to get it slightly wrong first time.

I did some posting of my experience fitting the chip earlier in this thread (page 9). The photos have gone walkies, but the narrative is still there!

Have fun.

Paul

Daft question time again.

I assume i need to physically set the aperture on the lens say to f8 and then set f8 in AV mode?

paulkaye wrote in post #11810905
Yes, it will - or at least, it did in my case. I found that focusing was not at all easy to get right. Manual focus using the regular viewfinder is a waste of time and on my copy of the lens, the focus scale is so far out that it's hopeless too (and this is not an uncommon problem - Samyang need to fix this). What's worse is that there is some 'backlash' in the mechanism which means that the actual focus for any given marking will depend on whether you're approaching it from the infinity end or the near end. Live view is fine of course - but it's less than ideal if you're hand-holding and of course it's not great in bright light.

A focus conf chip solves all this, but there are a few things to note:

- There are several versions. Some have a programmable function that lets you set the Exif info for focal length, max aperture and, most importantly, whether it tells the camera if the lens is operating in 'MF' or 'AF' mode. This is important since the camera seems to allow more latitude in showing focus confirmation (focus point flashing) if it thinks the lens is in AF mode. So, it works better if the chip is set to tell the camera that it's MF. I have had much more success in getting precise focus this way. So, make sure you get a programmable version. I have the Tagotech chip, which is supplied by a company in SIngapore. They are very reliable and can be found on eBay.

- The Tagotech chip needs shimming to make it stand sufficiently proud of the mount to make contact with the camera's pins. Thankfully, a credit card is just the right thickness, so a carefully cut shim from an old card works fine.

- The chip is small and I personally was not keen to glue it. I found that using double-sided sticky tape was easy and perfectly strong enough. It also allows re-positioning of the chip. This is important since although the Tagotech chip comes with an alignment tool, I still managed to get it slightly wrong first time.

I did some posting of my experience fitting the chip earlier in this thread (page 9). The photos have gone walkies, but the narrative is still there!

Have fun.

Paul

I loved what you did Paul and hats off.
Being lazy personally, how about buying a Nikon mount lens, then use it with Nik to Can adapter that has chips in place and as from experience with my other lenses (Longer focal lengths though), combination works beautifully.

dervish99 wrote in post #11842351
Daft question time again.

I assume i need to physically set the aperture on the lens say to f8 and then set f8 in AV mode?

No you just need to set it on the lens.

samsen wrote in post #11843086
I loved what you did Paul and hats off.
Being lazy personally, how about buying a Nikon mount lens, then use it with Nik to Can adapter that has chips in place and as from experience with my other lenses (Longer focal lengths though), combination works beautifully.

Yea, I know. If I'd realised that was a possibility, I would have done it. Live and learn...

A few from this weekend, C&C always appreciated.

IMAGE LINK: http://www.flickr.com/​photos/fnothaft/544913​4471/

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IMAGE LINK: http://www.flickr.com/​photos/fnothaft/544912​8857/

Samyang 14 mm with grey filters:

IMAGE LINK: http://www.flickr.com …time-4-photos/5423453186/

IMAGE LINK: http://www.flickr.com …time-4-photos/5422848423/

ZoneV wrote in post #11854196
Samyang 14 mm with grey filters:

IMAGE LINK: http://www.flickr.com …time-4-photos/5423453186/
Stones in Water von Time-4-Photos auf Flickr

IMAGE LINK: http://www.flickr.com …time-4-photos/5422848423/
Amrum Seaside von Time-4-Photos auf Flickr

The cow on my last post didn´t moistured the lens. A women on a parade did that - she kissed the lens :-/

Nice photos! I think the vignette may be a bit heavy though...

What about buying nikon mount lens and eos to nikon lens adapter with focus confirmation?

ZoneV wrote in post #11854196
Samyang 14 mm with grey filters:

IMAGE LINK: http://www.flickr.com …time-4-photos/5423453186/
Stones in Water von Time-4-Photos auf Flickr

IMAGE LINK: http://www.flickr.com …time-4-photos/5422848423/
Amrum Seaside von Time-4-Photos auf Flickr

The cow on my last post didn´t moistured the lens. A women on a parade did that - she kissed the lens :-/

How did you use the filter? just hold it against the front, or some funky home made filter holder?

Just ordered my 14mm, so interested in filter holders.