I bottle condition lagers and my method is to lager for a week or two first drop out most detritus, then bottle condition, and then lager the beer in the bottles after carbbing if necessary (in case the beer isn't clear). A lot of homebrewers extend lagering time unnecessarily ...for pale beers a week or two of lagering is plenty, unless the beer is higher gravity and then a few weeks maybe in order. But the idea is to get the beer crystal clear, so that just takes as long as it takes. But the big bonus of bottle conditioning is that the beer haze/yeast/etc has a much shorter distance to fall as opposed to a 5 gallon fermenter so you can get it to drop bright rather quickly.